Individual provider

Dulce Diaz

Phlebotomy Technician Internal Medicine Physician

Dulce Diaz is a Phlebotomy Technician in San Francisco, CA, registered under NPI 1033053095. 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 760 HARRISON ST, San Francisco, CA 94107. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

760 HARRISON ST, San Francisco, CA 94107 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
CPT-02343582 CA Phlebotomy Technician primary
21340-20 CA Internal Medicine Physician

This provider holds licence CPT-02343582 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)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Phlebotomy covers

Definition to come... NUCC Health Care Provider Taxonomy, code 246RP1900X
Technologists, Technicians & Other Technical Service Providers Technician, Pathology Phlebotomy

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
246RP1900X Phlebotomy Technician Phlebotomy CPT-02343582 CA primary
207R00000X Internal Medicine Physician 21340-20 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.

NPI1033053095 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateApr 17, 2026
Last updatedApr 17, 2026
StatusActive
Sole proprietorNo
Practice address 760 HARRISON ST
San Francisco, CA 94107
(628) 754-8738
Fax (628) 754-8691
This record was updated on Apr 17, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1033053095 passes the NPI check digit test The final digit 5 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 0 3 3 0 5 3 0 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 6 3 0 5 6 0 9

Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5

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 1033053095?
NPI 1033053095 is the National Provider Identifier assigned to Dulce Diaz 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 Phlebotomy cover?
Definition to come...
How do I contact Dulce Diaz?
The phone number on file with NPPES is (628) 754-8738, last updated Apr 17, 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.
Is NPI 1033053095 a valid number?
Yes. 1033053095 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.