Individual provider

Kirsten Fleischmann, M.D.

Cardiovascular Disease Physician Internal Medicine Physician Medicare enrolled

Kirsten Fleischmann, M.D. is a Cardiovascular Disease Physician in San Francisco, CA, registered under NPI 1609809649. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 535 MISSION BAY BLVD S, San Francisco, CA 94143. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

535 MISSION BAY BLVD S, San Francisco, CA 94143 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
G84348 CA Cardiovascular Disease Physician primary
G84348 CA Internal Medicine Physician

This provider holds licence G84348 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Cardiovascular Disease (cardiology)
PAC ID
5890879845

Medicare enrolment is recorded as approved under the provider type Practitioner - Cardiovascular Disease (cardiology). This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Cardiovascular Disease covers

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms. NUCC Health Care Provider Taxonomy, code 207RC0000X
Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RC0000X Cardiovascular Disease Physician Cardiovascular Disease G84348 CA primary
207R00000X Internal Medicine Physician G84348 CA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1609809649 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJul 9, 2006
Last updatedJan 6, 2026
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 535 MISSION BAY BLVD S
San Francisco, CA 94143
(415) 353-2873
Fax (415) 353-2528
Mailing address 505 PARNASSUS AVENUE M 1180
San Francisco, CA 94143
Other identifiers 00G843480 (CA)
This record was updated on Jan 6, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1609809649 passes the NPI check digit test The final digit 9 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 0 9 8 0 9 6 4
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 0 9 7 0 9 6 8

Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1609809649?
NPI 1609809649 is the National Provider Identifier assigned to Kirsten Fleischmann, M.D. in San Francisco, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Cardiovascular Disease cover?
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
How do I contact Kirsten Fleischmann, M.D.?
The phone number on file with NPPES is (415) 353-2873, last updated Jan 6, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Kirsten Fleischmann, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1609809649 a valid number?
Yes. 1609809649 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.