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Active NPI 1255436804 Individual Practitioner Male Practitioner

Dr. Mark Shaffer , MD

Internal Medicine • La Mesa, CA

Professional Overview & Biography Verified Profile Summary

Dr. Mark Shaffer, MD is a registered healthcare professional specializing in Internal Medicine in La Mesa, CA. Practice services are available at 7877 PARKWAY DR under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

7877 Parkway Dr
Suite1b

La Mesa, CA 919422000

Telephone 6194613717
Fax 6194615663
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in La Mesa, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.3 Yrs
State Avg: 26.6 Yrs
Regional Practice Density
62 Specialists

Practicing in La Mesa, CA (18502 Statewide)

Telehealth Adoption Rate
30.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA C42649

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.

Practice Associates & Co-Workers

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

8 Associated Practitioners
Timothy Donnelly , PA

Physician Assistant - Medical

NPI 1083995609

Physician Assistant

Dr. Martin Nosan , MD

Internal Medicine

NPI 1184748311

Doctor of Medicine (M.D.)

Dr. William Davis , MD

Internal Medicine - Cardiovascular Disease

NPI 1316939978

Doctor of Medicine (M.D.)

NPI 1356578769

Doctor of Medicine (M.D.)

Dr. Brenton Wynn , MD

Physical Medicine & Rehabilitation - Pain Medicine

NPI 1528069820

Doctor of Medicine (M.D.)

NPI 1679934822

PSYCHOLOGICALASSIST

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active September 02, 2010

NPI status registered as active in NPPES database

📍
Updated Practice Location September 02, 2010

Registered at 7877 PARKWAY DR, SUITE1B, LA MESA, CA 919422000 (Tel: 6194613717)

📍
Updated Business Mailing Address September 02, 2010

Registered at 7877 PARKWAY DR, SUITE1B, LA MESA, CA 919422000 (Tel: 6194613717)

👤
Provider Name / Credentials Updated September 02, 2010

Recorded as MARK SHAFFER, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 02, 2010

Internal Medicine (License #C42649 in CA)

🟢
Initial NPI Registration & Enumeration September 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: 1255436804
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 14, 2006
Last Update: September 02, 2010
Sole Proprietor: Yes

Mailing Address

7877 Parkway Dr, Suite1b

La Mesa, CA 919422000

Phone: 6194613717

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.