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DR. GRACE ZAPATA ANG M.D.
NPI 1902990245
Internal Medicine in Napa, CA

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment
2100 NAPA VALLEJO HWY., NAPA, CA 94558(707) 253-5000(408) 730-0548 Get Directions Write a Review

NPPES record last updated: April 2, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Grace Zapata Ang M.d. NPPES

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

DR. GRACE ZAPATA ANG M.D. (NPI 1902990245) is an individual internal medicine provider in Napa, California, licensed in California (A68373) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1902990245
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. GRACE ZAPATA ANGCredential: M.D.
Location Address2100 NAPA VALLEJO HWY.Napa, CA 94558-6293
Mailing Address2100 Napa Vallejo Hwy.Napa, CA 94558-6293 · (707) 253-5000 · Fax (408) 730-0548
Phone(707) 253-5000
Fax(408) 730-0548
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateOctober 3, 2006
Last NPPES UpdateApril 2, 2019
✔ NPI 1902990245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A68373
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.
2100 NAPA VALLEJO HWY., Napa, CA 94558
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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

Dr. Grace Zapata Ang M.d. 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 ID8729169677
PECOS Enrollment IDI20160107002406
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

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.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307
A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.
21 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 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
$145.99 typical visit price
range $65.08 – $192.16
Typical copayment $36.49 (range $16.27 – $48.04)
Most-billed visit code 99204
Established Patient
$113.15 typical visit price
range $21.86 – $157.83
Typical copayment $28.28 (range $5.46 – $39.45)
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.

MR. JOHN DURBIN MCILNAY PSYD
Psychologist
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5654
JOEL STEVEN MOSTOW M.D.
Psychiatry & Neurology (Psychiatry)
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5654
YING-YING YEH PHD
Psychologist
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5000
DR. LUCIANO TRISTAN PHD
Psychologist
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5654
DR. ERIC ALEXANDER GONZALEZ PH.D.
Psychologist
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5654
DR. SABINA VILLALOBOS CORREA PSYD
Psychologist
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5000
KAISER SULTANA M.D.
Psychiatry & Neurology (Psychiatry)
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5000
DR. JASKARAN SINGH MOMI M.D.
Internal Medicine
2100 NAPA VALLEJO HWY.
NAPA, CA 94558
Napa County (707) 253-5000

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 Grace Ang's NPI number?

The NPI number for Grace Ang is 1902990245. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Grace Ang located?

Grace Ang practices at 2100 Napa Vallejo Hwy., Napa, CA 94558. The listed phone number is (707) 253-5000.

What is Grace Ang's specialty?

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

Is Grace Ang enrolled in Medicare?

Yes. Grace Ang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Grace Ang was last updated on April 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.