Karen Herbst Jamison, M.D.
Internal Medicine Physician · San Diego, CA
Karen Herbst Jamison, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1285830505, issued on Jun 24, 2007. Check the license (California A95356, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen Herbst Jamison
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A95356 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4060 Fourth Ave, San Diego, CA 92103
- Phone
- (619) 298-1318
- Enumerated
- Jun 24, 2007
- Record last updated
- Aug 21, 2023
- Fax
- (619) 298-0843
- Medicaid ID
- 00A953560 CA
- Entity
- Type 1 · individual
Also registered at 4060 Fourth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Herbst Jamison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
52 Medicare Part D claims for 18 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $28.31
1 payment: food and beverage; the largest payer was Sanofi Pasteur Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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 961 in San Diego → All 17,696 in California → Every provider in San Diego →
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Common questions
What is Karen Herbst Jamison, M.D.'s NPI number?
Karen Herbst Jamison, M.D.'s National Provider Identifier (NPI) is 1285830505, issued on Jun 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen Herbst Jamison, M.D. located?
The NPPES record lists a practice address at 4060 Fourth Ave, San Diego, CA, 92103. Phone: (619) 298-1318. Providers update this record themselves, so call before visiting.
How can I verify Karen Herbst Jamison, M.D.'s license?
NPPES lists California license number A95356, 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 Karen Herbst Jamison, M.D. prescribe under Medicare Part D?
In 2024, Karen Herbst Jamison, M.D. had 52 Medicare Part D claims for 18 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.