Active NPI 1194752089 Individual Practitioner Male Practitioner

Dr. Leonard Charles Glaser , MD

Internal Medicine • Naples, FL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Leonard Glaser, MD is a certified Internal Medicine practicing in Naples, FL. With approximately 49 years of clinical experience since completing medical education in 1977, Dr. Glaser delivers high-quality medical care to the local community at 8340 COLLIER BLVD STE 405.

Dr. Glaser is affiliated with Collier Hma Physician Management Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

8340 Collier Blvd Ste 405

Naples, FL 34114

Telephone 2393484221

Associated Practice Facility / Clinic

🏢 Collier Boulevard Hma Physician Management Llc Facility NPI 1376114397

Medicare Profile & Education

Medical School

Other

Graduation Year

1977

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Naples, FL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

49 Yrs +25.8 yrs vs City Avg

City Avg: 23.2 Yrs

State Avg: 26.5 Yrs

Regional Practice Density

232 Specialists

Practicing in Naples, FL (10650 Statewide)

Telehealth Adoption Rate

19.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

59.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Glaser (49 Years) 49 Yrs

Naples Specialty Average (23.2 Years) 23.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	754	453	$297.00	$130.03
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	340	340	$309.00	$131.62
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days	207	51	$134.00	$47.13
G0444 Annual depression screening, 5 to 15 minutes	198	198	$52.00	$18.99
99213 Established patient office or other outpatient visit, typically 15 minutes	97	88	$202.00	$92.43
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes	94	47	$133.00	$49.60
G0442 Annual alcohol misuse screening, 5 to 15 minutes	52	52	$52.00	$18.86
99453 Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment	41	41	$51.00	$20.34
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	33	30	$399.00	$184.79
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	27	27	$466.00	$164.56
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	21	13	$65.00	$14.41
99496 Transitional care management services for problem of high complexity	21	19	$637.00	$282.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$461.00	$171.53
93000 Routine ekg using at least 12 leads including interpretation and report	19	19	$81.00	$14.72
36415 Insertion of needle into vein for collection of blood sample	13	13	$10.00	$8.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	786	457	$297.00	$131.50
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	326	326	$309.00	$132.54
G0444 Annual depression screening, 5 to 15 minutes	241	241	$52.00	$18.76
G0442 Annual alcohol misuse screening, 5 to 15 minutes	170	170	$52.00	$18.84
99213 Established patient office or other outpatient visit, typically 15 minutes	122	111	$202.00	$92.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	47	45	$399.00	$184.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$461.00	$173.36
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	40	19	$65.00	$14.46
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	34	34	$466.00	$166.86
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	30	13	$7.00	$1.67
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days	28	13	$134.00	$50.25
93000 Routine ekg using at least 12 leads including interpretation and report	13	13	$81.00	$15.09
83036 Hemoglobin A1C level	13	11	$31.77	$9.52
99453 Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment	12	12	$51.00	$19.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	922	555	$297.00	$131.39
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	214	214	$309.00	$133.99
G0442 Annual alcohol misuse screening, 5 to 15 minutes	188	188	$52.00	$18.91
99213 Established patient office or other outpatient visit, typically 15 minutes	179	143	$202.00	$94.15
G0444 Annual depression screening, 5 to 15 minutes	144	144	$52.00	$18.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	135	135	$461.00	$175.98
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	65	65	$466.00	$169.89
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	61	24	$65.00	$14.71
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	48	18	$7.00	$1.71
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	38	37	$399.00	$179.62
93000 Routine ekg using at least 12 leads including interpretation and report	21	21	$81.00	$15.01
81002 Urinalysis, manual test	18	15	$39.00	$3.26
99495 Transitional care management services for problem of at least moderate complexity	12	12	$450.00	$213.35
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	12	12	$210.00	$54.61
99496 Transitional care management services for problem of high complexity	11	11	$637.00	$286.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	841	494	$297.00	$136.56
99213 Established patient office or other outpatient visit, typically 15 minutes	276	220	$202.00	$96.42
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	179	179	$466.00	$176.42
G0442 Annual alcohol misuse screening, 5 to 15 minutes	169	169	$52.00	$19.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	126	126	$461.00	$177.36
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	118	118	$309.00	$139.66
G0444 Annual depression screening, 5 to 15 minutes	61	61	$52.00	$19.44
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	56	54	$399.00	$187.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$300.00	$119.28
99495 Transitional care management services for problem of at least moderate complexity	42	39	$450.00	$215.61
99496 Transitional care management services for problem of high complexity	36	33	$637.00	$292.09
81002 Urinalysis, manual test	35	33	$39.00	$3.48
G0009 Administration of pneumococcal vaccine	32	32	$66.00	$17.45
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	21	21	$210.00	$55.49
90670 Pneumococcal vaccine for injection into muscle	21	21	$401.00	$237.63
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	17	11	$65.00	$14.77
93000 Routine ekg using at least 12 leads including interpretation and report	17	16	$81.00	$15.78
83036 Hemoglobin A1C level	17	16	$31.77	$9.14
82962 Blood glucose (sugar) test performed by hand-held instrument	16	15	$15.00	$3.08
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	11	11	$200.00	$123.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	289	214	$202.00	$78.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	272	177	$297.00	$113.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	130	130	$461.00	$173.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	89	89	$300.00	$112.96
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	88	88	$309.00	$120.10
81002 Urinalysis, manual test	40	36	$39.00	$3.45
90662 Influenza vaccine split virus, preservative free	32	31	$85.00	$60.79
G0008 Administration of influenza virus vaccine	32	31	$62.89	$17.34
G0009 Administration of pneumococcal vaccine	27	27	$66.00	$17.26
82962 Blood glucose (sugar) test performed by hand-held instrument	22	13	$15.00	$3.26
90670 Pneumococcal vaccine for injection into muscle	21	21	$401.00	$223.54
G0442 Annual alcohol misuse screening, 5 to 15 minutes	18	18	$52.00	$18.77
99202 New patient office or other outpatient visit, typically 20 minutes	17	17	$205.00	$79.66
99496 Transitional care management services for problem of high complexity	16	14	$637.00	$252.57
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	12	12	$210.00	$55.43
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	12	$121.00	$47.59
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$399.00	$152.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	279	178	$134.40	$79.27
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	138	62	$110.00	$73.36
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	88	$180.32	$115.82
99306 Initial nursing facility visit, typically 45 minutes per day	96	80	$220.94	$176.46
36415 Insertion of needle into vein for collection of blood sample	89	77	$15.53	$2.94
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	57	57	$457.37	$172.61
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	50	21	$131.00	$89.42
81002 Urinalysis, manual test	49	47	$20.22	$3.41
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	48	48	$234.83	$123.90
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	30	27	$65.00	$57.46
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$281.54	$114.30
G0008 Administration of influenza virus vaccine	16	16	$57.17	$17.24
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	13	11	$139.00	$97.46
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$237.92	$155.68
90662 Influenza vaccine split virus, preservative free	12	12	$85.00	$54.89
93000 Routine ekg using at least 12 leads including interpretation and report	11	11	$73.45	$18.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	407	157	$110.00	$76.52
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	307	97	$110.21	$71.98
99306 Initial nursing facility visit, typically 45 minutes per day	251	199	$220.51	$172.11
36415 Insertion of needle into vein for collection of blood sample	208	163	$16.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	203	107	$141.56	$112.56
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	149	37	$131.27	$87.10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	134	134	$219.41	$121.80
81002 Urinalysis, manual test	97	92	$16.00	$3.41
G0008 Administration of influenza virus vaccine	84	84	$40.00	$22.26
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	72	72	$45.00	$23.57
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	61	42	$65.00	$56.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	61	26	$102.00	$75.03
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	45	30	$146.00	$107.39
99239 Hospital discharge day management, more than 30 minutes	39	31	$209.79	$111.44
99496 Transitional care management services for problem of high complexity	26	20	$344.46	$243.25
93000 Routine ekg using at least 12 leads including interpretation and report	25	25	$78.00	$17.99
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	20	$210.82	$151.40
99318 Nursing facility annual assessment, typically 30 minutes	22	22	$174.00	$99.70
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	19	16	$45.00	$43.93
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	14	12	$139.00	$94.87
90756 Vaccine for influenza for injection into muscle	12	12	$45.00	$22.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	503	209	$110.00	$75.97
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	335	102	$109.97	$71.07
36415 Insertion of needle into vein for collection of blood sample	306	225	$16.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	268	132	$141.42	$111.37
99306 Initial nursing facility visit, typically 45 minutes per day	247	199	$220.32	$170.29
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	156	156	$220.00	$119.41
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	154	42	$130.79	$86.34
81002 Urinalysis, manual test	133	123	$16.00	$3.43
G0008 Administration of influenza virus vaccine	98	97	$40.00	$27.77
Q2037 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin)	97	96	$44.86	$17.33
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	84	33	$102.00	$73.54
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	63	54	$64.68	$55.69
99239 Hospital discharge day management, more than 30 minutes	44	38	$209.64	$110.08
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	38	28	$149.84	$106.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	30	$214.67	$149.35
99496 Transitional care management services for problem of high complexity	28	27	$344.50	$239.10
93000 Routine ekg using at least 12 leads including interpretation and report	28	27	$78.00	$17.80
99318 Nursing facility annual assessment, typically 30 minutes	28	28	$174.00	$98.51
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	24	16	$47.50	$43.30
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	21	20	$175.00	$133.47
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	20	15	$139.00	$93.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	13	12	$292.00	$206.87

Medical Specialties & State Licenses

CMS Verified: 2020-09-15

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License FL ME139291

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License CT 022003

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

103666800 (FL)

Medicaid State Provider ID

1220037 (CT)

Commercial Insurance / Payer ID Health Net

2V0711 (CT)

Commercial Insurance / Payer ID Aetna

4002857 (CT)

Commercial Insurance / Payer ID Conncare

050632 (CT)

Commercial Insurance / Payer ID Rr Medicare

110217801 (CT)

Commercial Insurance / Payer ID Oxford

HAP004 (CT)

Hospital & Practice Group Affiliations

Collier Hma Physician Management Llc

6101 Pine Ridge Rd, Naples, FL 341193900

Collier Hma Physician Management Llc

1839 San Marco Rd, Marco Island, FL 341456722

Phone: 2393941670

Collier Hma Physician Management Llc

8340 Collier Blvd, Naples, FL 341143625

Phone: 2393484224

Secondary Practice Locations

36o N Main St, Suite 3

Southington, CT 064892503

Phone: 8606218361

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Alicia Sloan , PA-C

Physician Assistant

NPI 1013432251

Physician Assistant (Certified)

Dr. Sarah Deleon Mansson , DO

Internal Medicine - Cardiovascular Disease

NPI 1043453616

Doctor of Osteopathic Medicine (D.O.)

Dr. Mary Campbell , MD

Family Medicine

NPI 1053402354

Doctor of Medicine (M.D.)

Dr. Ronald Caputo , MD

Internal Medicine - Interventional Cardiology

NPI 1063408227

Doctor of Medicine (M.D.)

Patricia Fry , PA-C

Physician Assistant

NPI 1073564936

Physician Assistant (Certified)

Maria Lopez Whitney , PA-C

Physician Assistant

NPI 1083247183

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location September 24, 2019

Registered at 8340 COLLIER BLVD STE 405, NAPLES, FL 34114 (Tel: 2393484221)

📍

Updated Business Mailing Address September 24, 2019

Registered at PO BOX 11390, BELFAST, ME 049154004 (Tel: 2393484221)

✅

NPI Profile Active December 07, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location December 07, 2010

Registered at 36O N MAIN ST, SUITE 3, SOUTHINGTON, CT 064892503 (Tel: 8606218361)

📍

Updated Business Mailing Address December 07, 2010

Registered at 36O N MAIN ST, SUITE 3, SOUTHINGTON, CT 064892517 (Tel: 8606218361)

👤

Provider Name / Credentials Updated December 07, 2010

Recorded as LEONARD GLASER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 07, 2010

Internal Medicine (License #022003 in CT)

🟢

Initial NPI Registration & Enumeration June 27, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1194752089

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 27, 2006

Last Update: September 15, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 11390

Belfast, ME 049154004

Phone: 2393484221

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.