Marion L Guyer, MD is a medicare enrolled "Internal Medicine" physician in Greebrae, California. She went to University Of California, San Francisco School Of Medicine and graduated in 1997 and has 27 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Anne M. Cummings, M.d. A Medical Corporation and her current practice location is
1300 S. Eliseo, Suite 203, Greebrae, California. You can reach out to her office (for appointments etc.) via phone at
(415) 461-5552.
Marion L Guyer is licensed to practice in California (license number A66859) and she also participates in the medicare program. She
accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1942388749.
Physician's Profile
| Full Name | Marion L Guyer |
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| Gender | Female |
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| Speciality | Internal Medicine |
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| Experience | 27 Years |
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| Location | 1300 S. Eliseo, Greebrae, California |
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| Accepts Medicare Assignments | Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance. |
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Medical Education and Training:
- Marion L Guyer attended and graduated from University Of California, San Francisco School Of Medicine in 1997
NPI Data:
- NPI Number: 1942388749
- Provider Enumeration Date: 11/01/2006
- Last Update Date: 10/05/2023
Medicare PECOS Information:
- PECOS PAC ID: 0648448225
- Enrollment ID: I20110726000684
Medical Identifiers
Medical identifiers for Marion L Guyer such as npi, medicare ID, medicare PIN, medicaid, etc.
| Identifier | Type | State | Issuer |
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| 1942388749 | NPI | - | NPPES |
| 1942388749 | Medicaid | CT | |
| A66859 | Other | CA | STATE MEDICAL LICENSE |
Medical Taxonomies and Licenses
| Taxonomy | Type | License (State) | Status |
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| 207R00000X | Internal Medicine | A66859 (California) | Primary |
Medical Facilities Affiliation
Group Practice Association
| Group Practice Name | Group PECOS PAC ID | No. of Members |
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| Anne M. Cummings, M.d. A Medical Corporation | 0749375160 | 2 |
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. Marion L Guyer allows following entities to bill medicare on her behalf.
| Entity Name | Anne M. Cummings, M.d. A Medical Corporation |
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| Entity Type | Part B Supplier - Clinic/group Practice |
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| Entity Identifiers | NPI Number: 1699974899
PECOS PAC ID: 0749375160
Enrollment ID: O20071001000346 |
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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. Marion L Guyer 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 Address | Practice Location Address |
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Marion L Guyer, MD
1300 S. Eliseo, Suite 203,
Greebrae, CA 94902-1408
Ph: (415) 461-5552 | Marion L Guyer, MD
1300 S. Eliseo, Suite 203,
Greebrae, CA 94902-1408
Ph: (415) 461-5552 |
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