DR. ANGEL J YAP M.D.
NPI 1861668048
Family Medicine in San Francisco, CA

Q: What is Angel Yap's NPI number?

The NPI number for Angel Yap is 1861668048. It was assigned to this individual provider in the NPPES registry on May 7, 2008. The provider is also known as Angel Indradjaja.

Q: What is Angel Yap's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Angel Yap was last updated on April 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since May 07, 2008PECOS Enrolled

161 NATOMA ST, SAN FRANCISCO, CA 94105(619) 648-1247 Get Directions Write a Review

NPPES record last updated: April 3, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 3, 2025, Aug 16, 2023, May 16, 2023 (3 updates tracked since 2023).

On this page

About Dr. Angel J Yap M.d. NPPES

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

DR. ANGEL J YAP M.D. (NPI 1861668048) is an individual family medicine provider in San Francisco, California, licensed in California (A107182) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861668048

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. ANGEL J YAPCredential: M.D.

Location Address161 NATOMA STSan Francisco, CA 94105-3746

Mailing Address427 E 17th St, #785Costa Mesa, CA 92627-4748 · (949) 478-4356 · Fax (949) 276-3187

Phone(619) 648-1247

Sole ProprietorNo

Enumeration DateMay 7, 2008

Last NPPES UpdateApril 3, 20253 updates tracked since enumeration

NPPES CertifiedApril 3, 2025

✔ NPI 1861668048 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · A107182

Definition

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.

161 NATOMA ST, San Francisco, CA 94105

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Other Names 1

Other Name (5)Angel Indradjaja

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Angel J Yap M.d. 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

Medicare enrollment records show Angel Yap reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthcare Partners Affiliates Medical Group

346 mi

Internal Medicine

1120 W WASHINGTON BLVD
Los Angeles, CA 90015

Reassigned Medicare billing, California enrollment
2,052 clinicians in this Medicare group

NPI 1659312593 (213) 623-2225

Memorialcare Medical Foundation

376 mi

Clinic/Center

17360 BROOKHURST ST
Fountain Valley, CA 92708

Reassigned Medicare billing, California enrollment
948 clinicians in this Medicare group

NPI 1205167350 (877) 696-3622

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

25 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94105 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

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 4

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

MOCHI MEDICAL CA PC

Family Medicine (Obesity Medicine)

161 NATOMA ST
SAN FRANCISCO, CA 94105

San Francisco County (952) 250-8191

MOCHI MEDICAL, P.A.

Internal Medicine (Obesity Medicine)

161 NATOMA ST
SAN FRANCISCO, CA 94105

San Francisco County (952) 250-8191

MOCHI MEDICAL NJ P.C.

Internal Medicine (Obesity Medicine)

161 NATOMA ST
SAN FRANCISCO, CA 94105

San Francisco County (952) 250-8191

SAMANTHA CLAIRE CHALIGOJ NP

Nurse Practitioner (Family)

161 NATOMA ST
SAN FRANCISCO, CA 94105

San Francisco County (619) 648-1247

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 Angel Yap's NPI number?

The NPI number for Angel Yap is 1861668048. It was assigned to this individual provider in the NPPES registry on May 7, 2008. The provider is also known as Angel Indradjaja.

Where is Angel Yap located?

Angel Yap practices at 161 Natoma St, San Francisco, CA 94105. The listed phone number is (619) 648-1247.

What is Angel Yap's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Angel Yap enrolled in Medicare?

Yes. Angel Yap is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Angel Yap's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Angel Yap reassigns Medicare benefits to 2 organizations: Healthcare Partners Affiliates Medical Group (Los Angeles, CA) and Memorialcare Medical Foundation (Fountain Valley, 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 Angel Yap'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 Angel Yap was last updated on April 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.