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

GARMEN A WOO M.D.
NPI 1144551979
General Practice in Tracy, CA

Active since January 19, 2010PECOS EnrolledAccepts Medicare Assignment
91.04/100
CMS Quality Rating
4600 S TRACY BLVD STE 108, TRACY, CA 95377(510) 571-4596 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Garmen A Woo M.d. NPPES

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

GARMEN A WOO M.D. (NPI 1144551979) is an individual general practice provider in Tracy, California, licensed in California (A110615) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1144551979
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameGARMEN A WOOCredential: M.D.
Location Address4600 S TRACY BLVD STE 108Tracy, CA 95377-8105
Mailing Address4600 S Tracy Blvd Ste 108Tracy, CA 95377-8105 · (510) 517-4596
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJanuary 19, 2010
Last NPPES UpdateJuly 9, 2026
NPPES CertifiedJuly 9, 2026
NPI 1144551979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License Licensed in CA · A110615
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
Also ListedInternal MedicineTaxonomy 207R00000X · License A110615 (CA)
4600 S TRACY BLVD STE 108, Tracy, CA 95377

Accepted Insurance

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

Garmen A Woo 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 ID6800928029
PECOS Enrollment IDI20100722000815
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 8

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
257 services188 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
76 services70 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
34 services27 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
24 services13 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
22 services21 patients
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.
21 services16 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.13
Promoting Interoperability100
Improvement Activities40
Cost64.1

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.

Specialist
4600 S TRACY BLVD STE 108
TRACY, CA 95377
Clinic/Center (Mental Health (Including Community Mental Health Center))
4600 S TRACY BLVD STE 108
TRACY, CA 95377
Specialist
4600 S TRACY BLVD STE 108
TRACY, CA 95377
Specialist
4600 S TRACY BLVD STE 108
TRACY, CA 95377

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 Garmen Woo's NPI number?

The NPI number for Garmen Woo is 1144551979. It was assigned to this individual provider in the NPPES registry on January 19, 2010.

Where is Garmen Woo located?

Garmen Woo practices at 4600 S Tracy Blvd Ste 108, Tracy, CA 95377. The listed phone number is (510) 571-4596.

What is Garmen Woo's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Garmen Woo enrolled in Medicare?

Yes. Garmen Woo 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.

What insurance does Garmen Woo accept?

Health plans from Molina Healthcare list Garmen Woo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Garmen Woo was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.