DR. TIMOTHY RICHARD PARENTEAU MD, PHD
NPI 1790272599
Internal Medicine - Geriatric Medicine in Oakland, CA
About Dr. Timothy Richard Parenteau Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY RICHARD PARENTEAU MD, PHD (NPI 1790272599) is an individual geriatric medicine provider in Oakland, California, licensed in California (A167098) and active in the NPI registry since April 2018. 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)
Dr. Timothy Richard Parenteau Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Timothy Parenteau reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94107
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94609 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OAKLAND, CA 94609
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 Timothy Parenteau's NPI number?
The NPI number for Timothy Parenteau is 1790272599. It was assigned to this individual provider in the NPPES registry on April 17, 2018.
Where is Timothy Parenteau located?
Timothy Parenteau practices at 3300 Webster St Ste 1106, Oakland, CA 94609. The listed phone number is (510) 817-2000.
What is Timothy Parenteau's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Timothy Parenteau enrolled in Medicare?
Yes. Timothy Parenteau is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Timothy Parenteau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Parenteau reassigns Medicare benefits to 4 organizations: City & County Of San Francisco (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Timothy Parenteau'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 Timothy Parenteau was last updated on August 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Timothy Richard Parenteau, MD, PHD · NPI 1790272599
Geriatric Medicine physician in Oakland, California. Individual provider, active in the CMS NPPES registry since April 17, 2018.
## Identity
- **NPI:** 1790272599 (Entity type: Individual)
- **Enumerated:** April 17, 2018
- **Primary specialty:** Internal Medicine - Geriatric Medicine · taxonomy 207RG0300X
- **State license:** A167098 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 WEBSTER ST STE 1106, Oakland, CA 94609-3125
- **Phone:** (510) 817-2000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1568923894, San Francisco, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 8, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1790272599) · Data from the CMS NPPES public registry.