Karen E. Bayle, MD
Internal Medicine Physician · San Francisco, CA
Karen E. Bayle, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1851405724, issued on Aug 18, 2006. Check the license (California G68362, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen E. Bayle
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G68362 CA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Ivy St, San Francisco, CA 94102
- Phone
- (415) 355-7470
- Enumerated
- Aug 18, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 355-7407
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 50 Ivy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tanya Majumder, M.D.Internal Medicine Physician1417304825
- Jessica Naugle, RNRegistered Nurse1902276215
- Josephine Nnakigozi, LCSWClinical Social Worker1811226624
- Russell Schmidt, RNAmbulatory Care Registered Nurse1619225034
Verify Karen E. Bayle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G68362Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
12 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
- Adacel Tdap11 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.
Karen E. Bayle among 17,696 internal medicine physician records in California
Karen E. Bayle, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% 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
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- Valerie Garrett, MDSan Francisco, CA 941021326003013
- Doan Khong, M.D.San Francisco, CA 941021336238310
- Alisa Oberschelp, M.D.San Francisco, CA 941021487759007
- Manisha Ojha, MDSan Francisco, CA 941021922070937
- Joseph Pace, M.D.San Francisco, CA 941021598779522
Common questions
What is Karen E. Bayle, MD's NPI number?
Karen E. Bayle, MD's National Provider Identifier (NPI) is 1851405724, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen E. Bayle, MD located?
The NPPES record lists a practice address at 50 Ivy St, San Francisco, CA, 94102. Phone: (415) 355-7470. Providers update this record themselves, so call before visiting.
How can I verify Karen E. Bayle, MD's license?
NPPES lists California license number G68362, 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 E. Bayle, MD prescribe under Medicare Part D?
In 2024, Karen E. Bayle, MD had 12 Medicare Part D claims for 12 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.