Active NPI 1922078294 Individual Practitioner Male Practitioner

Dr. Dennis Whittier Hartman , OD

Optometrist • Merced, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Dennis Hartman, OD is a certified Optometrist practicing in Merced, CA. With approximately 37 years of clinical experience since graduating from Pacific University - College Of Optometry in 1989, Dr. Hartman delivers high-quality medical care to the local community at 580 COLLINS DR.

Dr. Hartman is affiliated with Kenneth R Grossman M D Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, photography of the retina, established patient problem focused exam of visual system. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

580 Collins Dr

Merced, CA 953483121

Telephone 2093830989

Fax 2093836836

Associated Practice Facility / Clinic

🏢 Kenneth R Grossman Md Inc Facility NPI 1174537021

Medicare Profile & Education

Medical School

Pacific University - College Of Optometry

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Merced, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs +10.2 yrs vs City Avg

City Avg: 26.8 Yrs

State Avg: 21.9 Yrs

Regional Practice Density

24 Specialists

Practicing in Merced, CA (8588 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

53.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hartman (37 Years) 37 Yrs

Merced Specialty Average (26.8 Years) 26.8 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
92014 Established patient complete exam of visual system	890	681	$175.00	$122.31
92250 Photography of the retina	590	545	$54.00	$35.25
92012 Established patient problem focused exam of visual system	572	363	$124.55	$86.97
92134 Imaging of retina	299	172	$57.01	$38.94
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	240	240	$225.00	$157.43
92133 Imaging of optic nerve	104	102	$53.31	$35.17
99213 Established patient office or other outpatient visit, typically 15 minutes	62	60	$124.42	$87.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	32	31	$125.00	$115.19
92083 Exam of visual field with extended testing	15	15	$87.00	$64.26
67028 Injection of drug into eye	13	13	$663.46	$114.31
67820 Removal of eyelashes using forceps	12	11	$173.00	$17.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	182	171	$175.00	$131.53
92250 Photography of the retina	123	123	$54.01	$38.67
92012 Established patient problem focused exam of visual system	95	80	$124.00	$93.62
92134 Imaging of retina	77	67	$57.00	$41.98
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	67	67	$225.00	$169.10
92133 Imaging of optic nerve	19	19	$51.00	$38.11

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	304	262	$115.00	$114.02
92134 Imaging of retina	302	293	$80.00	$39.77
92081 Exam of visual field with limited testing	253	252	$55.00	$34.73
99213 Established patient office or other outpatient visit, typically 15 minutes	66	49	$80.00	$79.18
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	63	63	$165.00	$163.61
92083 Exam of visual field with extended testing	35	26	$85.00	$66.22
92133 Imaging of optic nerve	31	23	$80.00	$35.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	366	349	$80.00	$40.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	343	298	$115.00	$114.73
92081 Exam of visual field with limited testing	306	302	$55.00	$35.60
99213 Established patient office or other outpatient visit, typically 15 minutes	97	68	$80.00	$80.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	88	88	$165.00	$163.49
92133 Imaging of optic nerve	42	27	$80.00	$36.84
92083 Exam of visual field with extended testing	40	26	$85.00	$67.39

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	371	299	$115.00	$113.02
92134 Imaging of retina	342	322	$80.00	$40.38
92081 Exam of visual field with limited testing	298	293	$55.00	$35.70
99213 Established patient office or other outpatient visit, typically 15 minutes	101	67	$80.00	$78.09
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	73	73	$165.00	$164.52
92083 Exam of visual field with extended testing	55	39	$85.00	$66.00
92133 Imaging of optic nerve	50	36	$80.00	$36.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$115.00	$112.35

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	399	337	$115.00	$111.49
92134 Imaging of retina	384	362	$80.00	$40.20
92081 Exam of visual field with limited testing	321	320	$55.00	$35.63
99213 Established patient office or other outpatient visit, typically 15 minutes	118	77	$80.00	$75.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	87	87	$165.00	$162.79
92083 Exam of visual field with extended testing	72	52	$85.00	$65.79
92133 Imaging of optic nerve	71	50	$80.00	$35.63
92132 Imaging of front third of eye	16	15	$45.00	$27.98
92020 Examination of cornea and iris using lens device and slit lamp	13	12	$30.00	$28.82

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	353	279	$115.00	$104.38
92134 Imaging of retina	323	305	$80.00	$38.40
92081 Exam of visual field with limited testing	276	275	$55.00	$34.14
99213 Established patient office or other outpatient visit, typically 15 minutes	93	60	$80.00	$69.83
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	63	63	$165.00	$157.57
92133 Imaging of optic nerve	61	43	$80.00	$34.24
92083 Exam of visual field with extended testing	59	42	$85.00	$61.94

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	355	274	$115.00	$104.04
92134 Imaging of retina	323	298	$65.51	$37.63
92081 Exam of visual field with limited testing	292	287	$55.00	$33.33
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	78	78	$165.00	$157.54
92133 Imaging of optic nerve	69	49	$63.77	$35.27
92083 Exam of visual field with extended testing	60	42	$85.00	$63.77
99213 Established patient office or other outpatient visit, typically 15 minutes	50	37	$80.00	$70.61
92014 Established patient complete exam of visual system	25	25	$115.00	$111.91
92132 Imaging of front third of eye	20	20	$45.00	$27.68
92020 Examination of cornea and iris using lens device and slit lamp	13	13	$30.00	$26.28

Medical Specialties & State Licenses

CMS Verified: 2023-01-11

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License CA 9253T

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID State License

9253T (CA)

Hospital & Practice Group Affiliations

Kenneth R Grossman M D Inc

580 Collins Dr, Merced, CA 953483121

Phone: 2093830989

Practice Associates & Co-Workers

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

3 Associated Practitioners

Amelia Lopez , PHYSICIAN ASSISTANT

Physician Assistant - Medical

NPI 1124153440

PHYSICIANASSISTANT

Dr. Kenneth Grossman , MD

Ophthalmology

NPI 1184684672

Doctor of Medicine (M.D.)

Omran Nattouf , PA

Physician Assistant

NPI 1609685627

Physician Assistant

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location January 11, 2023

Registered at 580 COLLINS DR, MERCED, CA 953483121 (Tel: 2093830989)

📍

Updated Business Mailing Address January 11, 2023

Registered at 580 COLLINS DR, MERCED, CA 953483121 (Tel: 2093830989)

✅

NPI Profile Active December 07, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location December 07, 2007

Registered at 711 EAST HAWKEYE AVE, SUITE 1, TURLOCK, CA 95380 (Tel: 2096322411)

📍

Updated Business Mailing Address December 07, 2007

Registered at 711 EAST HAWKEYE AVE, SUITE 1, TURLOCK, CA 95380 (Tel: 2096322411)

👤

Provider Name / Credentials Updated December 07, 2007

Recorded as DENNIS HARTMAN, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 07, 2007

Optometrist (License #9253T in CA)

🟢

Initial NPI Registration & Enumeration January 26, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1922078294

Entity Type:

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

Enumeration Date: January 26, 2006

Last Update: January 11, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

580 Collins Dr

Merced, CA 953483121

Phone: 2093830989

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.