1. Home
  2. Directory
  3. NPI Profile

SUNTHARA HAY DO
NPI 1073696720
Obstetrics & Gynecology in 2500 Alhambra Avenue, CA

Active since October 23, 2006PECOS Enrolled
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS, 2500 ALHAMBRA AVENUE, CA 94553(925) 370-5110(925) 370-5142 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Sunthara Hay Do NPPES

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

SUNTHARA HAY DO (NPI 1073696720) is an individual obstetrics & gynecology provider in 2500 Alhambra Avenue, California, licensed in California (20A7829) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073696720
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameSUNTHARA HAYCredential: DO
Location Address2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS2500 Alhambra Avenue, CA 94553-3156
Mailing Address50 Douglas Drive Suite 391, Health Services AdministrationMartinez, CA 94553-4098 · (925) 957-5429 · Fax (925) 957-5401
Phone(925) 370-5110
Fax(925) 370-5142
Sole ProprietorNo
Enumeration DateOctober 23, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1073696720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · 20A7829
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2500 ALHAMBRA AVENUE, 2500 Alhambra Avenue, CA 94553
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sunthara Hay Do 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

3

Medicare enrollment records show Sunthara Hay reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Contra Costa County
Same address
General Acute Care Hospital
2500 ALHAMBRA AVE
Martinez, CA 94553
  • Reassigned Medicare billing, California enrollment
  • 530 clinicians in this Medicare group
NPI 1386719086 (925) 370-5955
Obstetrix Medical Group Of California, A Professional Corporation
50 mi
Maternal & Fetal Medicine
900 E. HAMILTON AVE, SUITE 200
Campbell, CA 95008
  • Reassigned Medicare billing, California enrollment
  • 59 clinicians in this Medicare group
NPI 1629175336 (800) 463-6628
Obhg California, P.C.
2,210 mi
Obstetrics & Gynecology
777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Obhg California PC
  • 711 clinicians in this Medicare group
NPI 1215258892 (800) 967-2289

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 94553 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
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
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.

GARY P YEE DDS
Dentist
2500 ALHAMBRA AVENUE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
DOMENIC CAVALLARO DDS
Dentist
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
ALINA YEGISHEYEVNA FARAMAZYAN MD
Psychiatry & Neurology (Psychiatry)
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
SARA LEE CHAN DDS
Dentist
2500 ALHAMBRA AVENUE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
LINDA NAKELL PHD
Psychologist (Psychoanalysis)
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
R JONATHAN STANGER MD
Emergency Medicine
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
SARA KATE LEVIN MD
Internal Medicine
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
SCOTT F LOELIGER MD
Family Medicine
2500 ALHAMBRA AVENUE, CONTRA COSTA REGIONAL MEDICAL CENTER AND HEALTH CENTERS
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110

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 Sunthara Hay's NPI number?

The NPI number for Sunthara Hay is 1073696720. It was assigned to this individual provider in the NPPES registry on October 23, 2006.

Where is Sunthara Hay located?

Sunthara Hay practices at 2500 Alhambra Avenue Contra Costa Regional Medical Center And Health Centers, 2500 Alhambra Avenue, CA 94553. The listed phone number is (925) 370-5110.

What is Sunthara Hay's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Sunthara Hay enrolled in Medicare?

Yes. Sunthara Hay is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sunthara Hay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sunthara Hay reassigns Medicare benefits to 3 organizations: Contra Costa County (Martinez, CA), Obstetrix Medical Group Of California, A Professional Corporation (Campbell, CA) and Obhg California, P.C. (Greenville, SC). 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 Sunthara Hay'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 Sunthara Hay was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.