Active NPI 1447237003 Individual Practitioner Male Practitioner

Dr. Patrick Leong , DO

Internal Medicine • Somerville, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Leong, DO is a certified Internal Medicine practicing in Somerville, MA. With approximately 43 years of clinical experience since completing medical education in 1983, Dr. Leong delivers high-quality medical care to the local community at 440 FOLEY ST.

Dr. Leong maintains professional affiliations with The General Hospital Corporation, Massachusetts General Physicians Organization Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

440 Foley St

Somerville, MA 021451213

Telephone 8572820777

Medicare Profile & Education

Medical School

Other

Graduation Year

1983

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Somerville, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

43 Yrs +11.5 yrs vs City Avg

City Avg: 31.5 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

37 Specialists

Practicing in Somerville, MA (7127 Statewide)

Telehealth Adoption Rate

40.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

68.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Leong (43 Years) 43 Yrs

Somerville Specialty Average (31.5 Years) 31.5 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
36415 Insertion of needle into vein for collection of blood sample	152	100	$29.70	$8.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	145	94	$555.46	$134.31
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	69	69	$566.43	$142.48
99213 Established patient office or other outpatient visit, typically 15 minutes	48	42	$395.88	$94.56
G0442 Annual alcohol misuse screening, 5 to 15 minutes	43	43	$85.26	$21.37
G0444 Annual depression screening, 5 to 15 minutes	40	40	$85.13	$21.37
90480 Admn sarscov2 vacc 1 dose	34	31	$188.71	$47.07
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	30	30	$654.33	$290.24
G0009 Administration of pneumococcal vaccine	30	30	$137.27	$35.30
G0008 Administration of influenza virus vaccine	25	25	$140.36	$35.30
90662 Influenza vaccine split virus, preservative free	24	24	$189.38	$81.82
91320 Sarscv2 vac 30mcg trs-suc im	17	17	$274.41	$152.78
91322 Sarscov2 vac 50 mcg/0.5ml im	17	17	$313.00	$143.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$779.38	$197.22
99443 Telephone medical discussion with physician, 21-30 minutes	12	11	$556.33	$140.40

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	119	102	$422.13	$135.04
99213 Established patient office or other outpatient visit, typically 15 minutes	104	95	$284.50	$96.16
36415 Insertion of needle into vein for collection of blood sample	53	46	$19.37	$8.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$433.25	$172.64
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	30	30	$414.57	$139.36
80048 Blood test, basic group of blood chemicals (calcium, total)	12	12	$28.11	$8.29
84450 Liver enzyme (sgot), level	11	11	$14.65	$5.08
84075 Phosphatase (enzyme) level, alkaline	11	11	$14.65	$5.08
82247 Bilirubin level	11	11	$14.19	$4.92
82040 Albumin (protein) level	11	11	$14.01	$4.85
84460 Liver enzyme (sgpt), level	11	11	$15.00	$5.19

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	322	237	$297.02	$133.01
99213 Established patient office or other outpatient visit, typically 15 minutes	209	185	$203.02	$89.69
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	205	205	$304.95	$136.99
G0008 Administration of influenza virus vaccine	40	40	$75.48	$30.80
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	37	37	$168.20	$70.25
99496 Transitional care management services for problem of high complexity	26	26	$646.13	$274.64
99495 Transitional care management services for problem of at least moderate complexity	12	12	$489.15	$204.77

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	635	282	$122.77	$100.75
99213 Established patient office or other outpatient visit, typically 15 minutes	258	163	$76.56	$68.54
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	212	212	$184.33	$136.15
99442 Telephone medical discussion with physician, 11-20 minutes	14	12	$176.00	$69.12

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	392	217	$99.41	$80.42
99213 Established patient office or other outpatient visit, typically 15 minutes	381	227	$62.34	$51.83
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	150	150	$184.00	$120.42
93793 Anticoagulant management of patient taking warfarin	61	11	$24.00	$12.08
99442 Telephone medical discussion with physician, 11-20 minutes	53	38	$176.00	$52.77
99443 Telephone medical discussion with physician, 21-30 minutes	43	36	$213.07	$81.41
99358 Prolonged patient service without direct patient contact first hour	24	24	$204.00	$115.20
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	22	22	$93.00	$8.78

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	626	277	$127.19	$80.48
99213 Established patient office or other outpatient visit, typically 15 minutes	375	217	$108.23	$52.21
99358 Prolonged patient service without direct patient contact first hour	53	47	$240.00	$114.93
93793 Anticoagulant management of patient taking warfarin	41	15	$24.80	$12.48
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	34	34	$184.00	$120.67
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	22	19	$132.00	$55.25
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	22	22	$93.00	$8.74
99406 Smoking and tobacco use intermediate counseling, greater than 3 minutes up to 10 minutes	14	13	$51.00	$12.75
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	12	12	$237.00	$177.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$208.27	$124.45

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	532	270	$115.04	$79.70
99213 Established patient office or other outpatient visit, typically 15 minutes	415	233	$93.68	$52.10
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	16	14	$87.75	$8.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	506	260	$79.75	$51.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	414	236	$108.07	$80.51
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	30	30	$87.50	$8.60

Medical Specialties & State Licenses

CMS Verified: 2023-08-02

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 151924

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.

Family Medicine

NUCC Taxonomy Code: 207Q00000X

State License NH 7813

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

30005217 (NH)

Hospital & Practice Group Affiliations

The General Hospital Corporation

55 Fruit St, Boston, MA 021142621

Phone: 6177262000

Massachusetts General Physicians Organization Inc

440 Foley St, Somerville, MA 021451213

Phone: 8572820777

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Practice Associates & Co-Workers

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

10 Associated Practitioners

Dr. Lucia Dias-Hoff , MD

Family Medicine

NPI 1104893155

Doctor of Medicine (M.D.)

Dr. James Ehrlich , DNP, FNP-BC

Nurse Practitioner - Family

NPI 1134696800

Doctor of Nursing Practice, Family Nurse Practitioner (Board Certified)

Elizabeth Ferreira , RN

Registered Nurse - Ambulatory Care

NPI 1326960055

Registered Nurse

Dr. Anthony Ishak , PharmD

Pharmacist - Ambulatory Care

NPI 1376541003

Doctor of Pharmacy (Pharm.D.)

Marie Grace Han , FNP-C

Nurse Practitioner

NPI 1497008247

Family Nurse Practitioner (Certified)

Dr. Brian Smerkers , MD

Internal Medicine

NPI 1497140305

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location August 02, 2023

Registered at 440 FOLEY ST, SOMERVILLE, MA 021451213 (Tel: 8572820777)

📍

Updated Business Mailing Address August 02, 2023

Registered at 440 FOLEY ST, SOMERVILLE, MA 021451213 (Tel: 8572820777)

👤

Provider Name / Credentials Updated August 02, 2023

Recorded as PATRICK LEONG, DO

✅

NPI Profile Active January 07, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location January 07, 2016

Registered at 4 DOBSON WAY, MERRIMACK, NH 030544340 (Tel: 6034244181)

📍

Updated Business Mailing Address January 07, 2016

Registered at PO BOX 808, NASHUA, NH 030610808

👤

Provider Name / Credentials Updated January 07, 2016

Recorded as PATRICK LEONG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 07, 2016

Family Medicine (License #7813 in NH)

🟢

Initial NPI Registration & Enumeration December 27, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Patrick Leong. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1447237003

Entity Type:

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

Enumeration Date: December 27, 2005

Last Update: August 02, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

440 Foley St

Somerville, MA 021451213

Phone: 8572820777

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.