MICHAEL T. NWYNN MD
NPI 1629157367
Obstetrics & Gynecology - Gynecology in Redwood City, CA
About Michael T. Nwynn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL T. NWYNN MD (NPI 1629157367) is an individual gynecology provider in Redwood City, California, licensed in California (G70271) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael T. Nwynn Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Michael Nwynn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of San Mateo
- 597 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94063 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
REDWOOD CITY, CA 94063
REDWOOD CITY, CA 94063
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 Nwynn's NPI number?
The NPI number for Michael Nwynn is 1629157367. It was assigned to this individual provider in the NPPES registry on November 3, 2006.
Where is Michael Nwynn located?
Michael Nwynn practices at 1150 Veterans Blvd, Redwood City, CA 94063. The listed phone number is (650) 299-2000.
What is Michael Nwynn's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Michael Nwynn enrolled in Medicare?
Yes. Michael Nwynn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Nwynn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Nwynn reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Redwood City, CA) and San Mateo County (Redwood City, CA). Each 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 Michael Nwynn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Michael Nwynn was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 T. Nwynn, MD · NPI 1629157367
Gynecology physician in Redwood City, California. Individual provider, active in the CMS NPPES registry since November 3, 2006.
## Identity
- **NPI:** 1629157367 (Entity type: Individual)
- **Enumerated:** November 3, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecology · taxonomy 207VG0400X
- **State license:** G70271 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1150 VETERANS BLVD, Redwood City, CA 94063-2037
- **Phone:** (650) 299-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA); San Mateo County (NPI 1912926692, Redwood City, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1989
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN F14607; Medicaid 00G702710 (CA); Medicare ID-Type Unspecified 00G702710
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Source: [NPI Profile](https://npiprofile.com/npi/1629157367) · Data from the CMS NPPES public registry.