PHYLLIS H. PENG MD
NPI 1770633596
Otolaryngology in Modesto, CA
About Phyllis H. Peng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHYLLIS H. PENG MD (NPI 1770633596) is an individual otolaryngology provider in Modesto, California, licensed in California (A94698) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2001).
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 and accepts Medicare assignment
Phyllis H. Peng 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 Reassignment
Medicare enrollment records show Phyllis Peng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 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 95356 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.
MODESTO, CA 95356
MODESTO, CA 95356
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 Phyllis Peng's NPI number?
The NPI number for Phyllis Peng is 1770633596. It was assigned to this individual provider in the NPPES registry on January 12, 2007.
Where is Phyllis Peng located?
Phyllis Peng practices at 4601 Dale Rd, Modesto, CA 95356. The listed phone number is (209) 557-1000.
What is Phyllis Peng's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Phyllis Peng enrolled in Medicare?
Yes. Phyllis Peng 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 organization bills Medicare for Phyllis Peng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Phyllis Peng reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Phyllis Peng'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 Phyllis Peng was last updated on December 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Phyllis H. Peng, MD · NPI 1770633596
Otolaryngology physician in Modesto, California. Individual provider, active in the CMS NPPES registry since January 12, 2007.
## Identity
- **NPI:** 1770633596 (Entity type: Individual)
- **Enumerated:** January 12, 2007
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** A94698 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4601 DALE RD, Modesto, CA 95356-9718
- **Phone:** (209) 557-1000
## 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:** Permanente Medical Group Inc (NPI 1548343510, Stockton, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** December 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1770633596) · Data from the CMS NPPES public registry.