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DR. GINA M ADAIR M.D.
NPI 1619930179
Family Medicine in Tracy, CA

Active since April 07, 2006PECOS Enrolled
2185 W GRANT LINE RD, TRACY, CA 95377(209) 839-3300 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gina M Adair M.d. NPPES

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

DR. GINA M ADAIR M.D. (NPI 1619930179) is an individual family medicine provider in Tracy, California, licensed in California (A80234) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619930179
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. GINA M ADAIRCredential: M.D.
Location Address2185 W GRANT LINE RDTracy, CA 95377-7309
Mailing Address2185 W Grant Line RdTracy, CA 95377-7309 · (209) 839-3300
Phone(209) 839-3300
Sole ProprietorNo
Enumeration DateApril 7, 2006
Last NPPES UpdateDecember 15, 2021
✔ NPI 1619930179 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 · A80234
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.
2185 W GRANT LINE RD, Tracy, CA 95377
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gina M Adair 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 Reassignment

Medicare enrollment records show Gina Adair reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
20 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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 95377 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

ELENA GALLARDO COSTA NP
Nurse Practitioner
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-3300
DR. TRACY ANN GAYESKI PSY.D.
Psychologist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-6234
MS. MYRA MAE SIA HAYA CCC-SLP
Speech-Language Pathologist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-3200
TIMOTHY WONG LMFT
Marriage & Family Therapist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-3200
DR. NGOC SON DANG PHARMD
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-6210
STACY QUACH PHARMD
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-6210
JAMES G. STEPHEN MD
Internal Medicine
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-3200
DR. DOREEN ANN SAMELSON EDD, MSCP
Psychologist
2185 W GRANT LINE RD
TRACY, CA 95377
San Joaquin County (209) 839-6233

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 Gina Adair's NPI number?

The NPI number for Gina Adair is 1619930179. It was assigned to this individual provider in the NPPES registry on April 7, 2006.

Where is Gina Adair located?

Gina Adair practices at 2185 W Grant Line Rd, Tracy, CA 95377. The listed phone number is (209) 839-3300.

What is Gina Adair's specialty?

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

Is Gina Adair enrolled in Medicare?

Yes. Gina Adair is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gina Adair's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gina Adair reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The 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 Gina Adair'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 Gina Adair was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.