Gastroenterology Specialists Medical Group, Inc A Medical Corporation - Medicare Primary Care in Castro Valley, CA

Gastroenterology Specialists Medical Group, Inc A Medical Corporation is a medicare enrolled primary clinic (Internal Medicine - Gastroenterology) in Castro Valley, California. The current practice location for Gastroenterology Specialists Medical Group, Inc A Medical Corporation is 19845 Lake Chabot Rd, Suite 104, Castro Valley, California. For appointments, you can reach them via phone at (510) 537-4415. The mailing address for Gastroenterology Specialists Medical Group, Inc A Medical Corporation is 19845 Lake Chabot Rd, Suite 104, Castro Valley, California and phone number is (510) 537-4415.

Gastroenterology Specialists Medical Group, Inc A Medical Corporation is licensed to practice in * (Not Available) (license number ). The clinic also participates in the medicare program and its NPI number is 1629170998. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (510) 537-4415.

Contact Information

Gastroenterology Specialists Medical Group, Inc A Medical Corporation
19845 Lake Chabot Rd
Suite 104
Castro Valley
CA 94546-4055
(510) 537-4415
Not Available

Map and Direction


Primary Care Clinic Profile

Full NameGastroenterology Specialists Medical Group, Inc A Medical Corporation
SpecialityInternal Medicine
Location19845 Lake Chabot Rd, Castro Valley, California
Authorized Official Name and PositionWei-fang Ko Ko (PRESIDENT)
Authorized Official Contact5105374415
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Gastroenterology Specialists Medical Group, Inc A Medical Corporation
19845 Lake Chabot Rd
Suite 104
Castro Valley
CA 94546-4055

Ph: (510) 537-4415
Gastroenterology Specialists Medical Group, Inc A Medical Corporation
19845 Lake Chabot Rd
Suite 104
Castro Valley
CA 94546-4055

Ph: (510) 537-4415

NPI Details:

NPI Number1629170998
Provider Enumeration Date09/05/2006
Last Update Date08/01/2022

Medicare PECOS Information:

Medicare PECOS PAC ID5193613008
Medicare Enrollment IDO20040310000752

Medical Identifiers

Medical identifiers for Gastroenterology Specialists Medical Group, Inc A Medical Corporation such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629170998NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology (* (Not Available))Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Gastroenterology Specialists Medical Group, Inc A Medical Corporation acts as a billing entity for following providers:
Provider NameWei-fang Ko
Provider TypePractitioner - Gastroenterology
Provider IdentifiersNPI Number: 1417068081
PECOS PAC ID: 6406970995
Enrollment ID: I20100907000347
Provider NameJeffrey D Singerman
Provider TypePractitioner - Gastroenterology
Provider IdentifiersNPI Number: 1932325446
PECOS PAC ID: 5395914469
Enrollment ID: I20110805000322
Provider NameVishal D Ghevariya
Provider TypePractitioner - Gastroenterology
Provider IdentifiersNPI Number: 1043519531
PECOS PAC ID: 4981881430
Enrollment ID: I20140611001781
Provider NameDiana Aurora Uribe-tanus
Provider TypePractitioner - Registered Dietitian Or Nutrition Professional
Provider IdentifiersNPI Number: 1780069054
PECOS PAC ID: 1254648819
Enrollment ID: I20150916001881
Provider NameSatya Allaparthi
Provider TypePractitioner - Gastroenterology
Provider IdentifiersNPI Number: 1699960815
PECOS PAC ID: 2769603604
Enrollment ID: I20180821003023
Provider NameShahla Khan
Provider TypePractitioner - Registered Dietitian Or Nutrition Professional
Provider IdentifiersNPI Number: 1548513567
PECOS PAC ID: 1153786660
Enrollment ID: I20230504001895
Provider NameCecilia Jane Fisher
Provider TypePractitioner - Registered Dietitian Or Nutrition Professional
Provider IdentifiersNPI Number: 1457060634
PECOS PAC ID: 1456713437
Enrollment ID: I20230809000668

Reviews and Comments


Internal Medicine in Castro Valley, CA

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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.