Dr. Eric C. Ma, MD
- Part D claims, 2018
- 11
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- CA
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ma's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Eric C. Ma is an internist in California
Dr. Ma practices in California.
Dr. Ma's NPI, 1467500421, was assigned on January 8, 2007. Dr. Ma graduated from David Geffen School of Medicine at UCLA in 1981. Dr. Ma's California license number on file is G48157.
- NPI
- 1467500421NPI Registry (opens in a new tab)
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dmand AI tracks the EHR system at Dr. Eric C. Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ma practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Ma's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric C. Ma is one of 16,751 internists in California
Internal medicine is Dr. Ma's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ma has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ma
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Eric C. Ma's patients have a median age of 83
Across all payers, Dmand AI patient panel data puts Dr. Ma's median patient age at 83, with 100% women.
Dr. Ma's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 83
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Eric C. Ma wrote 11 Medicare Part D claims in 2018
In 2018, Dr. Ma wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $320 in total drug cost. In 2017, CMS named 536 claims across 14 drugs.
Dr. Ma's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 5362018: 1198%
Drugs named by CMS: 1 in 2018, 14 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Eric C. Ma graduated from David Geffen School of Medicine at UCLA
Dr. Ma graduated from David Geffen School of Medicine at UCLA in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric C. Ma's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Eric C. Ma
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Eric C. Ma's NPI number?
Dr. Eric C. Ma's NPI number is 1467500421. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric C. Ma?
Dr. Eric C. Ma is an internist in California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
What is Dr. Eric C. Ma's medical license number?
Dr. Ma's California license number on file is G48157.
Where did Dr. Eric C. Ma go to medical school?
Dr. Ma graduated from David Geffen School of Medicine at UCLA in 1981.
What drugs does Dr. Eric C. Ma prescribe most?
In 2018 Medicare Part D data, Dr. Ma's most prescribed drugs by claims were Atorvastatin Calcium.
How long has Dr. Eric C. Ma been practicing?
Dr. Ma graduated from medical school in 1981, 45 years ago.
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