MR. PETER J UNDERWOOD MSN FNP- BC
NPI 1548069297
Nurse Practitioner - Family in Pasadena, CA
About Mr. Peter J Underwood Msn Fnp- Bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. PETER J UNDERWOOD MSN FNP- BC (NPI 1548069297) is an individual family provider in Pasadena, California, licensed in California (NP95032901) and active in the NPI registry since March 2025. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Peter J Underwood Msn Fnp- Bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Peter Underwood reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
El Segundo, CA 90245
- Reassigned Medicare billing, California enrollment
- 57 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 91105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Peter Underwood's NPI number?
The NPI number for Peter Underwood is 1548069297. It was assigned to this individual provider in the NPPES registry on March 13, 2025.
Where is Peter Underwood located?
Peter Underwood practices at 556 S Fair Oaks Ave # 101-249, Pasadena, CA 91105. The listed phone number is (626) 482-0290.
What is Peter Underwood's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Peter Underwood enrolled in Medicare?
Yes. Peter Underwood is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Peter Underwood's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Underwood reassigns Medicare benefits to Geriatric Support Medical Group PC (El Segundo, CA). The 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 Peter Underwood'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 Peter Underwood was last updated on March 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.
# Mr. Peter J Underwood, MSN FNP- BC · NPI 1548069297
Family physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since March 13, 2025.
## Identity
- **NPI:** 1548069297 (Entity type: Individual)
- **Enumerated:** March 13, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** NP95032901 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 556 S FAIR OAKS AVE # 101-249, Pasadena, CA 91105-2656
- **Phone:** (626) 482-0290
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Geriatric Support Medical Group PC (NPI 1548188931, El Segundo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1548069297) · Data from the CMS NPPES public registry.