STEPHEN J DENIGRIS MD
NPI 1699888610
Internal Medicine - Gastroenterology in Petaluma, CA
About Stephen J Denigris Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN J DENIGRIS MD (NPI 1699888610) is an individual gastroenterology provider in Petaluma, California, licensed in California (G87469) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (1988).
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
Stephen J Denigris 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
4Medicare enrollment records show Stephen Denigris reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Santa Rosa, CA 95405
- Reassigned Medicare billing, California enrollment
- 678 clinicians in this Medicare group
Santa Rosa, CA 95405
- Reassigned Medicare billing, California enrollment
- 1,699 clinicians in this Medicare group
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Ukiah, CA 95482
- Reassigned Medicare billing, California enrollment
- 221 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 6
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 94954 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PETALUMA, CA 94954
PETALUMA, CA 94954
PETALUMA, CA 94954
PETALUMA, CA 94954
PETALUMA, CA 94954
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 Stephen Denigris's NPI number?
The NPI number for Stephen Denigris is 1699888610. It was assigned to this individual provider in the NPPES registry on August 16, 2006.
Where is Stephen Denigris located?
Stephen Denigris practices at 1383 N Mcdowell Blvd Ste110, Petaluma, CA 94954. The listed phone number is (707) 766-9852.
What is Stephen Denigris's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Stephen Denigris enrolled in Medicare?
Yes. Stephen Denigris 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 Stephen Denigris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Denigris reassigns Medicare benefits to 4 organizations: Adventist Health Physicians Network (Santa Rosa, CA), Providence Medical Foundation (Santa Rosa, CA), Permanente Medical Group Inc (Vallejo, CA) and Ukiah Adventist Hospital (Ukiah, 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 Stephen Denigris'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 Stephen Denigris was last updated on November 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Stephen J Denigris, MD · NPI 1699888610
Gastroenterology physician in Petaluma, California. Individual provider, active in the CMS NPPES registry since August 16, 2006.
## Identity
- **NPI:** 1699888610 (Entity type: Individual)
- **Enumerated:** August 16, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** G87469 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1383 N MCDOWELL BLVD, STE110, Petaluma, CA 94954-1187
- **Phone:** (707) 766-9852 · **Fax:** (707) 766-1749
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Adventist Health Physicians Network (NPI 1871938175, Santa Rosa, CA); Providence Medical Foundation (NPI 1740584473, Santa Rosa, CA); Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA); Ukiah Adventist Hospital (NPI 1235120676, Ukiah, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 1988
## Record status
- **NPPES last updated:** November 13, 2012
- **Other identifiers:** Medicare UPIN F58728 (CA); Medicare PIN 00G874690 (CA); Medicaid 00G874690 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699888610) · Data from the CMS NPPES public registry.