Hugh Young Rienhoff, MD
Internal Medicine Physician · San Francisco, CA
Hugh Young Rienhoff, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1174663157, issued on Feb 7, 2007. Check the license (California C50543, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hugh Young Rienhoff
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C50543 CA
Self-reported in NPPES; status is on the state search - Practice location
- 375 Laguna Honda Blvd, San Francisco, CA 94116
- Phone
- (415) 759-2300
- Enumerated
- Feb 7, 2007
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 759-4587
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 375 Laguna Honda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hugh Young Rienhoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C50543Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $2,380.59
4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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.
Hugh Young Rienhoff among 17,696 internal medicine physician records in California
Hugh Young Rienhoff, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 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).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Martin Albion, MDSan Francisco, CA 941161548397896
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- Iling Chen, MDSan Francisco, CA 941161043350143
- Lisa Hoo, MDSan Francisco, CA 941161487794053
- Derek Kerr, MDSan Francisco, CA 941161861531485
- Emily Kinebuchi, MDSan Francisco, CA 941161760494645
- Christina Lee, MDSan Francisco, CA 941161639213663
- Julio Pineda, MDSan Francisco, CA 941161295870053
Common questions
What is Hugh Young Rienhoff, MD's NPI number?
Hugh Young Rienhoff, MD's National Provider Identifier (NPI) is 1174663157, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Hugh Young Rienhoff, MD located?
The NPPES record lists a practice address at 375 Laguna Honda Blvd, San Francisco, CA, 94116. Phone: (415) 759-2300. Providers update this record themselves, so call before visiting.
How can I verify Hugh Young Rienhoff, MD's license?
NPPES lists California license number C50543, 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.
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.