DR. ELIZABETH ANN BLUMENTHAL MD
NPI 1164759916
Obstetrics & Gynecology in San Francisco, CA

Active since November 13, 2009PECOS Enrolled
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-4624(415) 353-2405 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 29, 2021, Dec 30, 2016 (2 updates tracked since 2016).

About Dr. Elizabeth Ann Blumenthal Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ELIZABETH ANN BLUMENTHAL MD (NPI 1164759916) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (A107191) and active in the NPI registry since November 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164759916
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. ELIZABETH ANN BLUMENTHALCredential: MD
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing Address400 Parnassus AveSan Francisco, CA 94143-2202 · (415) 353-4624 · Fax (415) 353-2405
Fax(415) 353-2405
Sole ProprietorNo
Enumeration DateNovember 13, 2009
Last NPPES UpdateNovember 29, 20212 updates tracked since enumeration
✔ NPI 1164759916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A107191
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License A107191 (CA)
400 PARNASSUS AVE, San Francisco, CA 94143

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Elizabeth Ann Blumenthal Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Elizabeth Blumenthal reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Health Maintenance Organization
2103 E GONZALES RD
Oxnard, CA 93036
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
2441 W LA PALMA AVE
Anaheim, CA 92801
  • Reassigned Medicare billing, California enrollment
  • 255 clinicians in this Medicare group
Obstetrics & Gynecology
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth Blumenthal's NPI number?

The NPI number for Elizabeth Blumenthal is 1164759916. It was assigned to this individual provider in the NPPES registry on November 13, 2009.

Where is Elizabeth Blumenthal located?

Elizabeth Blumenthal practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-4624.

What is Elizabeth Blumenthal's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Elizabeth Blumenthal enrolled in Medicare?

Yes. Elizabeth Blumenthal is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Elizabeth Blumenthal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Blumenthal reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (Oxnard, CA), University Of California Irvine (Anaheim, CA) and Regents Of The University Of California (Orange, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elizabeth Blumenthal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Elizabeth Blumenthal was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.