Individual provider

Gwendolyn Okuzumi, MD

Family Medicine Physician Medicare enrolled

Gwendolyn Okuzumi, MD is a Family Medicine Physician in San Francisco, CA, registered under NPI 1720164239.

Getting there

The practice address on file is 1 CALIFORNIA ST STE 2300, San Francisco, CA 94111. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1 CALIFORNIA ST STE 2300, San Francisco, CA 94111 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A76974 CA Family Medicine Physician primary
T2033 TX Family Medicine Physician
ME147618 FL Family Medicine Physician
MD-47866 IA Family Medicine Physician
DR.0065122 CO Family Medicine Physician
MD-11656 HI Family Medicine Physician
307217 NY Family Medicine Physician
61744 AZ Family Medicine Physician
MD2020-1030 NM Family Medicine Physician
166659 AK Family Medicine Physician
MD201499 OR Family Medicine Physician

Licences are recorded in 11 states: CA, TX, FL, IA, CO, HI, NY, AZ, NM, AK, OR. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Family Practice
PAC ID
3173702834

Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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.

Licensed in 11 states

This provider holds licences in 11 states: Alaska, Arizona, California, Colorado, Florida, Hawaii, Iowa, New Mexico, New York, Oregon and Texas. The practice address on file is in San Francisco, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AK Alaska
Licence
166659
Specialty
Family Medicine Physician
Verify with the AK board →
AZ Arizona
Licence
61744
Specialty
Family Medicine Physician
Verify with the AZ board →
CA California practice address
Licence
A76974
Specialty
Family Medicine Physician
Verify with the CA board →
CO Colorado
Licence
DR.0065122
Specialty
Family Medicine Physician
Verify with the CO board →
FL Florida
Licence
ME147618
Specialty
Family Medicine Physician
Verify with the FL board →
HI Hawaii
Licence
MD-11656
Specialty
Family Medicine Physician
Verify with the HI board →
IA Iowa
Licence
MD-47866
Specialty
Family Medicine Physician
Verify with the IA board →
NM New Mexico
Licence
MD2020-1030
Specialty
Family Medicine Physician
Verify with the NM board →
NY New York
Licence
307217
Specialty
Family Medicine Physician
Verify with the NY board →
OR Oregon
Licence
MD201499
Specialty
Family Medicine Physician
Verify with the OR board →
TX Texas
Licence
T2033
Specialty
Family Medicine Physician
Verify with the TX board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Family Medicine covers

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
Allopathic & Osteopathic Physicians Family Medicine

All registered taxonomy codes

This provider registers 11 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207Q00000X Family Medicine Physician A76974 CA primary
207Q00000X Family Medicine Physician T2033 TX
207Q00000X Family Medicine Physician ME147618 FL
207Q00000X Family Medicine Physician MD-47866 IA
207Q00000X Family Medicine Physician DR.0065122 CO
207Q00000X Family Medicine Physician MD-11656 HI
207Q00000X Family Medicine Physician 307217 NY
207Q00000X Family Medicine Physician 61744 AZ
207Q00000X Family Medicine Physician MD2020-1030 NM
207Q00000X Family Medicine Physician 166659 AK
207Q00000X Family Medicine Physician MD201499 OR

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.

NPI1720164239 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateOct 27, 2006
Last updatedNov 1, 2022
StatusActive
Sole proprietorNo
CredentialMD
Practice address 1 CALIFORNIA ST STE 2300
San Francisco, CA 94111
(415) 504-3838
Fax (415) 504-1367
Other identifiers 00A769740 (CA)
The last update on file is Nov 1, 2022. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1720164239 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 7 2 0 1 6 4 2 3
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 7 4 0 2 6 8 2 6

Sum = 61 · next multiple of 10 = 70 · 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 1720164239?
NPI 1720164239 is the National Provider Identifier assigned to Gwendolyn Okuzumi, MD 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 Family Medicine Physician cover?
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
How do I contact Gwendolyn Okuzumi, MD?
The phone number on file with NPPES is (415) 504-3838, last updated Nov 1, 2022. 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 Gwendolyn Okuzumi, MD 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 1720164239 a valid number?
Yes. 1720164239 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.