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EAST BAY CENTER FOR DIGESTIVE HEALTH MEDICAL ASSOCIATES, INC
NPI 1689782039
Internal Medicine - Gastroenterology in Oakland, CA

Active since August 27, 2006
300 FRANK H OGAWA PLZ STE 355, OAKLAND, CA 94612(510) 444-3297(510) 444-6421 Get Directions Write a Review

NPPES record last updated: August 6, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 6, 2024, Nov 20, 2023 (2 updates tracked since 2023).

About East Bay Center For Digestive Health Medical Associates, Inc NPPES

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

EAST BAY CENTER FOR DIGESTIVE HEALTH MEDICAL ASSOCIATES, INC (NPI 1689782039) is a healthcare organization registered as a gastroenterology in Oakland, California and active in the NPI registry since August 2006. The organization lists Maria E Duenas, Business Manager, as its authorized official.

NPPES Registry Identity

NPI1689782039
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameEAST BAY CENTER FOR DIGESTIVE HEALTH MEDICAL ASSOCIATES, INC
Location Address300 FRANK H OGAWA PLZ STE 355Oakland, CA 94612-2088
Mailing Address300 Frank H Ogawa Plz Ste 355Oakland, CA 94612-2088 · (510) 444-3297 · Fax (510) 444-6421
Phone(510) 444-3297
Fax(510) 444-6421
Organization SubpartNo
Authorized OfficialMaria E DuenasBusiness Manager · (510) 433-7821
Enumeration DateAugust 27, 2006
Last NPPES UpdateAugust 6, 20242 updates tracked since enumeration
NPPES CertifiedAugust 6, 2024
✔ NPI 1689782039 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
300 FRANK H OGAWA PLZ STE 355, Oakland, CA 94612
Open in Google Maps ↗

Other Identifiers 1

MedicaidGR0082090CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

East Bay Center For Digestive Health Medical Associates, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20040831000472Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

16

Medicare enrollment records show 16 clinicians reassign Medicare billing to East Bay Center For Digestive Health Medical Associates, Inc, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 12 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Gastroenterology9
Pathology4
Nurse Practitioner3

Clinicians, nearest first (16)

Paul Chard, MD PHD
Gastroenterology
NPI 1427006006
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Susie Cohn, MD
Gastroenterology
NPI 1205161130
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Kevin Kane
Gastroenterology
NPI 1396109914
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Neil Stollman, MD
Gastroenterology
NPI 1225095763
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Liana Vesga, MD
Gastroenterology
NPI 1225058159
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Silvia Villagomez, MD
Gastroenterology
NPI 1790743359
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Sanya Wadhwa, M.D.
Gastroenterology
NPI 1003234501
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOS✔ Accepts MedicareSame address
Danny Wu, MD
Gastroenterology
NPI 1235197898
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
(510) 444-3297
✔ PECOSSame address
Earl Darby, MD
Gastroenterology
NPI 1790743292
300 FRANK H OGAWA PLZ SUITE 450
Oakland, CA 94612
(510) 444-3297
✔ PECOSSame address
Jianqiu Pan, MD
Pathology
NPI 1487760716
350 HAWTHORNE AVE
Oakland, CA 94609
(510) 869-6567
✔ PECOS✔ Accepts Medicare1.0 mi
Lauren Blanchard, CNFP
Nurse Practitioner
NPI 1326057092
3100 TELEGRAPH AVE SUITE 2102
Oakland, CA 94609
(510) 286-8175
✔ PECOS1.0 mi
Jenna Gutierrez, FNP-BC
Nurse Practitioner
NPI 1134734635
350 RHODE ISLAND ST STE 200
San Francisco, CA 94103
(415) 600-6960
✔ PECOS✔ Accepts Medicare7.7 mi
Rebecca Spies, M.D.
Pathology
NPI 1275750341
505 PARNASSUS AVE M580
San Francisco, CA 94143
(415) 353-1614
✔ PECOS✔ Accepts Medicare11 mi
Sebastian Sasu, M.D.
Pathology
NPI 1548387095
383 E GRAND AVE STE A
South San Francisco, CA 94080
(650) 616-2951
✔ PECOS✔ Accepts Medicare13 mi
Lynne Tavera, A.N.P.
Nurse Practitioner
NPI 1952442535
1750 EL CAMINO REAL STE 11
Burlingame, CA 94010
(650) 692-1373
✔ PECOS✔ Accepts Medicare16 mi
Shehla Arain, M.D.
Pathology
NPI 1497927784
17451 BASTANCHURY RD 204-30
Yorba Linda, CA 92886
(714) 577-0413
✔ PECOS✔ Accepts Medicare367 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 05D2100464

East Bay Center For Digestive Health Medical Associates Inc · Oakland, CA
Expired · Sep 30, 2026
CLIA Number05D2100464
Laboratory TypePhysician Office
Certificate Effective DateApril 20, 2022
Certificate Expiration DateSeptember 30, 2026
Laboratory DirectorDr. Shehla Arain MD
Laboratory Phone(510) 433-7821
Laboratory LocationEast Bay Center For Digestive Health Medical Associates Inc300 Frank H Ogawa Plaza, Ste 355, Oakland, CA 94612
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 East Bay Center For Digestive Health Medical Associates, Inc's NPI number?

The NPI number for East Bay Center For Digestive Health Medical Associates, Inc is 1689782039. It was assigned to this organization in the NPPES registry on August 27, 2006.

Where is East Bay Center For Digestive Health Medical Associates, Inc located?

East Bay Center For Digestive Health Medical Associates, Inc is located at 300 Frank H Ogawa Plz Ste 355, Oakland, CA 94612. The listed phone number is (510) 444-3297.

What is East Bay Center For Digestive Health Medical Associates, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is East Bay Center For Digestive Health Medical Associates, Inc enrolled in Medicare?

Yes. East Bay Center For Digestive Health Medical Associates, Inc is registered in the Medicare PECOS enrollment system.

When is East Bay Center For Digestive Health Medical Associates, Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through East Bay Center For Digestive Health Medical Associates, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 3 Medicare specialties reassign their Medicare billing to East Bay Center For Digestive Health Medical Associates, Inc. A 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 the clinician's services. The largest specialties are Gastroenterology (9), Pathology (4) and Nurse Practitioner (3). Of these, 9 practice at this address and 12 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for East Bay Center For Digestive Health Medical Associates, Inc was last updated on August 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.