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Active NPI 1184667057 Individual Practitioner Male Practitioner

Dr. Michael F Diffendall , OD

Optometrist • Phoenix, MD

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Michael Diffendall, OD is a certified Optometrist practicing in Phoenix, MD. With approximately 31 years of clinical experience since graduating from Pennsylvania College Of Optometry in 1995, Dr. Diffendall delivers high-quality medical care to the local community at 3332 PAPER MILL RD.

Dr. Diffendall is affiliated with M.F. Diffendall, Od, Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, established patient complete exam of visual system, new patient complete 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

3332 Paper Mill Rd

Phoenix, MD 211311419

Telephone 4106281510
Fax 4106281511
Associated Practice Facility / Clinic
🏢 M. F. Diffendall Od Pa Facility NPI 1194074476

Medicare Profile & Education

Medical School

Pennsylvania College Of Optometry

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Phoenix, MD

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
31 Yrs Matches City Avg
City Avg: 31.0 Yrs
State Avg: 23.3 Yrs
Regional Practice Density
2 Specialists

Practicing in Phoenix, MD (952 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
25.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Diffendall (31 Years) 31 Yrs
Phoenix Specialty Average (31.0 Years) 31.0 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
99213 Established patient office or other outpatient visit, typically 15 minutes
140 86 $150.00 $94.63
92014 Established patient complete exam of visual system
110 109 $150.00 $130.74
92004 New patient complete exam of visual system
30 30 $170.00 $154.30
92250 Photography of the retina
20 20 $74.30 $38.41
92134 Imaging of retina
16 16 $51.88 $42.10
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
15 15 $175.00 $116.33

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License MD TA1372

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

Medicaid State Provider ID
403626300 (MD)
Commercial Insurance / Payer ID Mamsi
1086642 (MD)
Commercial Insurance / Payer ID Blue Cross Carefirst
67500005 (DC)

Hospital & Practice Group Affiliations

M.f. Diffendall, Od, Pa

3332 Paper Mill Rd, Phoenix, MD 211311419

Phone: 4106281510

Practice Associates & Co-Workers

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

1 Associated Practitioners
NPI 1023099223

Doctor of Optometry

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active October 30, 2013

NPI status registered as active in NPPES database

📍
Updated Practice Location October 30, 2013

Registered at 3332 PAPER MILL RD, PHOENIX, MD 211311419 (Tel: 4106281510)

📍
Updated Business Mailing Address October 30, 2013

Registered at 3714 TUDOR ARMS AVE, BALTIMORE, MD 212112246 (Tel: 4103660165)

👤
Provider Name / Credentials Updated October 30, 2013

Recorded as MICHAEL DIFFENDALL, OD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 30, 2013

Optometrist (License #TA1372 in MD)

🟢
Initial NPI Registration & Enumeration June 14, 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: 1184667057
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 14, 2006
Last Update: October 30, 2013
Sole Proprietor: No

Mailing Address

3714 Tudor Arms Ave

Baltimore, MD 212112246

Phone: 4103660165

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.