Michael Weiss, MD - Medicare Internal Medicine in Walnut Creek, CA

Michael Weiss, MD is a medicare enrolled "Internal Medicine" physician in Walnut Creek, California. His current practice location is 1425 S Main St, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 295-4000.

Michael Weiss is licensed to practice in California (license number A53602) 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 1023196185.

Contact Information

Michael Weiss, MD
1425 S Main St,
Walnut Creek, CA 94596-5318
(925) 295-4000
Not Available



Physician's Profile

Full NameMichael Weiss
GenderMale
SpecialityInternal Medicine
Location1425 S Main St, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023196185
  • Provider Enumeration Date: 11/02/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 9638355209
  • Enrollment ID: I20110516000514

Medical Identifiers

Medical identifiers for Michael Weiss such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023196185NPI-NPPES
00A536020MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A53602 (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. Michael Weiss allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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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. Michael Weiss 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
Michael Weiss, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3429

Ph: (510) 625-6262
Michael Weiss, MD
1425 S Main St,
Walnut Creek, CA 94596-5318

Ph: (925) 295-4000

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Internal Medicine Doctors in Walnut Creek, CA

Dr. Joseph Patrick Henry, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone: 925-947-3393    Fax: 925-947-3396
Mr. Ramin Khashayar, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1399 Ygnacio Valley Rd, Ste 14, Walnut Creek, CA 94598
Phone: 925-939-3050    Fax: 925-939-3057
Dr. Hennessey Tseng, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd, Suite 220b, Walnut Creek, CA 94597
Phone: 925-937-1770    Fax: 925-937-0630
Dr. Ali-reza Barmaki, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone: 925-947-3393    Fax: 925-947-3396
Dr. Cynthia M. Mullen, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2637 Shadelands Dr, Walnut Creek, CA 94598
Phone: 925-322-2372    Fax: 925-322-6720
Mr. David Nathanson,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 320 Lennon Ln, Walnut Creek, CA 94598
Phone: 925-906-2000    
Mark D Nathan, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 106 La Casa Via, #140, Walnut Creek, CA 94598
Phone: 925-274-2860    Fax: 925-932-4527

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