Margaret Culver McDermott, MD
Internal Medicine Physician · San Diego, CA
Margaret Culver McDermott, MD is an internal medicine physician with a practice address in San Diego, California, and NPI 1124604707, issued on Mar 23, 2021. Check the license (California A187530, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margaret Culver McDermott
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A187530 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4077 Fifth Ave # Mer35, San Diego, CA 92103
- Phone
- (619) 294-8111
- Enumerated
- Mar 23, 2021
- Record last updated
- Aug 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20231211002604); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4077 Fifth Ave # Mer35
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Culver McDermott in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A187530Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
138 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Quetiapine Fumarate12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Scripps Health Inpatient Providers Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Culver McDermott among 17,696 internal medicine physician records in California
Margaret Culver McDermott, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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Common questions
What is Margaret Culver McDermott, MD's NPI number?
Margaret Culver McDermott, MD's National Provider Identifier (NPI) is 1124604707, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Culver McDermott, MD located?
The NPPES record lists a practice address at 4077 Fifth Ave # Mer35, San Diego, CA, 92103. Phone: (619) 294-8111. Providers update this record themselves, so call before visiting.
How can I verify Margaret Culver McDermott, MD's license?
NPPES lists California license number A187530, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Margaret Culver McDermott, MD prescribe under Medicare Part D?
In 2024, Margaret Culver McDermott, MD had 138 Medicare Part D claims for 31 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.