Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WOON TECK YAP
NPI 1699166702
Internal Medicine in San Francisco, CA

Q: What is Woon Teck Yap's NPI number?

The NPI number for Woon Teck Yap is 1699166702. It was assigned to this individual provider in the NPPES registry on February 11, 2015. The provider is also known as Jonathan Yap.

Q: What is Woon Teck Yap's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Woon Teck Yap was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days 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 February 11, 2015PECOS EnrolledAccepts Medicare Assignment

505 PARNASSUS AVE FL 3, SAN FRANCISCO, CA 94143(415) 353-1968 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 7, 2026, Dec 26, 2025, Dec 9, 2025 and 8 more (11 updates tracked since 2021).

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About Woon Teck Yap NPPES

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

WOON TECK YAP (NPI 1699166702) is an individual internal medicine provider in San Francisco, California, licensed in California (A152654) and active in the NPI registry since February 2015. He is enrolled in Medicare PECOS, is affiliated with St James Mercy Hospital, and maintains 8 additional practice locations.

NPPES Registry Identity

NPI1699166702

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameWOON TECK YAP

Location Address505 PARNASSUS AVE FL 3San Francisco, CA 94143-2204

Mailing Address200 W Arbor DrSan Diego, CA 92103-9000 · Fax (617) 344-3193

Phone(415) 353-1968

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateFebruary 11, 2015

Last NPPES UpdateJune 24, 202611 updates tracked since enumeration

NPPES CertifiedJune 24, 2026

✔ NPI 1699166702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · A152654✔ Licensed in NY · 330656

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License A152654 (CA)

505 PARNASSUS AVE FL 3, San Francisco, CA 94143

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Other Names 1

Professional Name (2)Jonathan Yap

Secondary Practice Locations 8

Location 1330 Lewis StSan Diego, CA 92103-2108 · Phone (800) 926-8273

Location 26655 Alvarado RdSan Diego, CA 92120-5208 · Phone (800) 926-8273

Location 31415 Ross AveEl Centro, CA 92243-4306 · Phone (800) 926-8273

Location 49400 Campus Point DrLA Jolla, CA 92093-1350 · Phone (800) 926-8273

Location 54250 1st AveSan Diego, CA 92103 · Phone (800) 926-8273

Location 6601 Elmwood AveRochester, NY 14642-2604 · Phone (585) 275-2734

Location 79300 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273

Location 8200 W Arbor DrSan Diego, CA 92103-9000 · Phone (800) 926-8273

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Woon Teck Yap is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032511985

PECOS Enrollment IDI20210714002537, I20240930002792

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.

Areas of Expertise CMS Part B claims 4

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.

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

13 services13 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

13 services11 patients

X-ray of foot, minimum of 3 views 73630

12 services11 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St James Mercy Hospital

Acute Care Hospitals · Hornell, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330151

Location7329 Seneca Road NorthHornell, NY 14843 · Steuben County

Emergency services

Nicholas H Noyes Memorial Hospital

Acute Care Hospitals · Dansville, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330238

Location111 Clara Barton StreetDansville, NY 14437 · Livingston County

Emergency services Birthing friendly

Strong Memorial Hospital

Acute Care Hospitals · Rochester, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330285

Location601 Elmwood AveRochester, NY 14642 · Monroe County

Emergency services Birthing friendly

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

$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 20

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

ROXANNA JUAREZ

Radiology (Nuclear Radiology)