MICHAEL P SHERMAN MD PHD, A MEDICAL CORPORATION
NPI 1831201912
Internal Medicine - Hematology & Oncology in Walnut Creek, CA
About Michael P Sherman Md Phd, A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL P SHERMAN MD PHD, A MEDICAL CORPORATION (NPI 1831201912) is a healthcare organization registered as a hematology & oncology in Walnut Creek, California and active in the NPI registry since August 2006. The organization lists Michael Paul Sherman, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michael P Sherman Md Phd, A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
59Medicare enrollment records show 59 clinicians reassign Medicare billing to Michael P Sherman MD Phd, A Medical Corporation, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 28 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 6
Nearest to this location (20)
See all 59Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Michael P Sherman MD Phd, A Medical Corporation's NPI number?
The NPI number for Michael P Sherman MD Phd, A Medical Corporation is 1831201912. It was assigned to this organization in the NPPES registry on August 31, 2006.
Where is Michael P Sherman MD Phd, A Medical Corporation located?
Michael P Sherman MD Phd, A Medical Corporation is located at 500 Lennon Ln, Walnut Creek, CA 94598. The listed phone number is (925) 939-9610.
What is Michael P Sherman MD Phd, A Medical Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Michael P Sherman MD Phd, A Medical Corporation enrolled in Medicare?
Yes. Michael P Sherman MD Phd, A Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Michael P Sherman MD Phd, A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 59 clinicians in 6 Medicare specialties reassign their Medicare billing to Michael P Sherman MD Phd, A Medical Corporation. 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 Diagnostic Radiology (40), Nurse Practitioner (8) and Nuclear Medicine (6). Of these, 9 practice at this address and 28 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Michael P Sherman MD Phd, A Medical Corporation accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care and Ambetter from Arkansas Health & Wellness and 36 other insurers list Michael P Sherman MD Phd, A Medical Corporation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Michael P Sherman MD Phd, A Medical Corporation was last updated on July 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Michael P Sherman Md Phd, A Medical Corporation · NPI 1831201912
Hematology & Oncology organization in Walnut Creek, California. Organization record, active in the CMS NPPES registry since August 31, 2006.
## Identity
- **NPI:** 1831201912 (Entity type: Organization)
- **Enumerated:** August 31, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **Organization subpart:** No
- **Authorized official:** Michael Sherman, OWNER
## Practice location
- **Address:** 500 LENNON LN, Walnut Creek, CA 94598-2415
- **Phone:** (925) 939-9610 · **Fax:** (925) 939-9839
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 59 clinicians in 6 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Diagnostic Radiology (40), Nurse Practitioner (8), Nuclear Medicine (6); 9 practice at this address and 28 within 10 miles; [full list](https://npiprofile.com/npi/1831201912/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 23, 2014
- **Other identifiers:** Medicare NSC 6135380001 (CA); Other ZZZ32812Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1831201912) · Data from the CMS NPPES public registry.