Julia Janssen
Internal Medicine Physician · San Francisco, CA
Julia Janssen is an internal medicine physician with a practice address in San Francisco, California, and NPI 1871026773, issued on Apr 7, 2017. Check the license (California A158396, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Julia Janssen
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A158396 CA
Self-reported in NPPES; status is on the state search - Practice location
- 356 7TH St, San Francisco, CA 94103
- Phone
- (628) 217-6600
- Enumerated
- Apr 7, 2017
- Record last updated
- Sep 20, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 356 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rio BauceClinical Social Worker1396328761
- Gloria CaleroCounselor1588085252
- Linda Creegan, FNPFamily Nurse Practitioner1922351352
- Joseph Engelman, MD, MPHPublic Health & General Preventive Medicine Physician1902066566
- Elizabeth Faber, N.P.Family Nurse Practitioner1871741033
- Charles FannHealth Educator1780005447
Verify Julia Janssen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158396Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Julia Janssen among 17,696 internal medicine physician records in California
Julia Janssen 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 not. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2023 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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
- Sanjay Basu, M.D., PH.D.San Francisco, CA 941031700111226
- Peter Berman, MDSan Francisco, CA 941031942382056
- Chieh-Yu Chen, MDSan Francisco, CA 941031346604006
- Hillary Kunins, MD, MPHSan Francisco, CA 941031619017597
- Lisa Pratt, M.D.San Francisco, CA 941031841305414
- Catherine Sanders, M.D.San Francisco, CA 941031366714925
- Mark Sears, MDSan Francisco, CA 941031134169105
- Laurene Spencer, MDSan Francisco, CA 941031114064342
Common questions
What is Julia Janssen's NPI number?
Julia Janssen's National Provider Identifier (NPI) is 1871026773, issued on Apr 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Julia Janssen located?
The NPPES record lists a practice address at 356 7TH St, San Francisco, CA, 94103. Phone: (628) 217-6600. Providers update this record themselves, so call before visiting.
How can I verify Julia Janssen's license?
NPPES lists California license number A158396, 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. 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.