ONYEMAECHI ANORUO MD, MPH, MS
NPI 1679159511
Obstetrics & Gynecology in San Francisco, CA

Active since March 22, 2021PECOS Enrolled
1825 4TH ST, SAN FRANCISCO, CA 94143(415) 353-3400 Get Directions Write a Review

NPPES record last updated: August 26, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 29, 2021, Mar 22, 2021 (2 updates tracked since 2021).

About Onyemaechi Anoruo Md, Mph, Ms NPPES

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

ONYEMAECHI ANORUO MD, MPH, MS (NPI 1679159511) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (A196895) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Oakland.

NPPES Registry Identity

NPI1679159511
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameONYEMAECHI ANORUOCredential: MD, MPH, MS
Location Address1825 4TH STSan Francisco, CA 94143-2350
Mailing Address275 W Macarthur BlvdOakland, CA 94611-5641
Sole ProprietorNo
Enumeration DateMarch 22, 2021
Last NPPES UpdateAugust 26, 20252 updates tracked since enumeration
NPPES CertifiedAugust 20, 2025
✔ NPI 1679159511 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 · A196895
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.
1825 4TH ST, San Francisco, CA 94143

Secondary Practice Location 1

Location 1275 W MacArthur BlvdOakland, CA 94611-5641 · Phone (510) 752-1000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Onyemaechi Anoruo Md, Mph, Ms 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

5

Medicare enrollment records show Onyemaechi Anoruo reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
Surgery
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 761 clinicians in this Medicare group
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
Clinic/Center
2741 MIDDLEFIELD RD
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • 2,460 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.

Obstetrics & Gynecology
1825 4TH ST
SAN FRANCISCO, CA 94143
Surgery
1825 4TH ST, 3RD FLOOR BOX 1710
SAN FRANCISCO, CA 94143
Nurse Practitioner (Acute Care)
1825 4TH ST
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
1825 4TH ST
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
1825 4TH ST
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
1825 4TH ST
SAN FRANCISCO, CA 94143
Nurse Practitioner
1825 4TH ST
SAN FRANCISCO, CA 94143
Pediatrics
1825 4TH ST
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 Onyemaechi Anoruo's NPI number?

The NPI number for Onyemaechi Anoruo is 1679159511. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Onyemaechi Anoruo located?

Onyemaechi Anoruo practices at 1825 4th St, San Francisco, CA 94143. The listed phone number is (415) 353-3400.

What is Onyemaechi Anoruo's specialty?

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

Is Onyemaechi Anoruo enrolled in Medicare?

Yes. Onyemaechi Anoruo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Onyemaechi Anoruo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Onyemaechi Anoruo reassigns Medicare benefits to 5 organizations: Permanente Medical Group Inc (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and County Of Santa Clara (Palo Alto, 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 Onyemaechi Anoruo'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 Onyemaechi Anoruo was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.