Rudolf Erich Herzog, MD
Internal Medicine Physician · San Diego, CA
Rudolf Erich Herzog, MD is an internal medicine physician with a practice address in San Diego, California, and NPI 1861599466, issued on Sep 19, 2006. Check the license (California G77598, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rudolf Erich Herzog
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G77598 CA
Self-reported in NPPES; status is on the state search - Practice location
- 106 Thorn St, San Diego, CA 92103
- Phone
- (619) 615-0842
- Enumerated
- Sep 19, 2006
- Record last updated
- Jul 5, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (619) 615-0864
- Medicare enrollment
- Enrolled (PECOS I20050831000661); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1991
- Entity
- Type 1 · individual
Also registered at 106 Thorn St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rudolf Erich Herzog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77598Check 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
126 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
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).
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 Rudolf Erich Herzog, MD's NPI number?
Rudolf Erich Herzog, MD's National Provider Identifier (NPI) is 1861599466, issued on Sep 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rudolf Erich Herzog, MD located?
The NPPES record lists a practice address at 106 Thorn St, San Diego, CA, 92103. Phone: (619) 615-0842. Providers update this record themselves, so call before visiting.
How can I verify Rudolf Erich Herzog, MD's license?
NPPES lists California license number G77598, 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 Rudolf Erich Herzog, MD prescribe under Medicare Part D?
In 2024, Rudolf Erich Herzog, MD had 126 Medicare Part D claims for 54 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.