Yair Josh Blumenfeld, MD - Medicare Obstetrics & Gynecology in Palo Alto, CA

Yair Josh Blumenfeld, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Palo Alto, California. His current practice location is 725 Welch Rd, Palo Alto, California. You can reach out to his office (for appointments etc.) via phone at (650) 497-8000.

Yair Josh Blumenfeld is licensed to practice in California (license number A94480) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1518077726.

Contact Information

Yair Josh Blumenfeld, MD
725 Welch Rd,
Palo Alto, CA 94304-1601
(650) 497-8000
Not Available

Map and Direction




Physician's Profile

Full NameYair Josh Blumenfeld
GenderMale
SpecialityObstetrics & Gynecology - Maternal & Fetal Medicine
Location725 Welch Rd, Palo Alto, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1518077726
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 04/19/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 7315942000
  • Enrollment ID: I20061002000686

Medical Identifiers

Medical identifiers for Yair Josh Blumenfeld such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518077726NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology A94480 (California)Secondary
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine A94480 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Yair Josh Blumenfeld allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232
Entity NameSilicon Valley Medical Development Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164880761
PECOS PAC ID: 6103115183
Enrollment ID: O20160513001617

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Yair Josh Blumenfeld is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Yair Josh Blumenfeld, MD
2680 Hanover St,
Palo Alto, CA 94304-1117

Ph: () -
Yair Josh Blumenfeld, MD
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000

Reviews and Comments


Obstetrics & Gynecology Doctors in Palo Alto, CA

Dr. Edward Lee Cohen, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 3801 Miranda Ave, #112, Palo Alto, CA 94304
Phone: 650-493-5000    
Winona Tan, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-853-2917    
Susan Diana Crowe, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Sylvie Leah Blumstein, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Julie Najar, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr, Palo Alto, CA 94305
Phone: 650-723-4000    
Amy E Judy, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Sanaa Hasan Suharwardy, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    

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.