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STEPHEN J DENIGRIS MD
NPI 1699888610
Internal Medicine - Gastroenterology in Petaluma, CA

Active since August 16, 2006PECOS EnrolledAccepts Medicare Assignment
1383 N MCDOWELL BLVD, STE110, PETALUMA, CA 94954(707) 766-9852(707) 766-1749 Get Directions Write a Review

NPPES record last updated: November 13, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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

NPI1699888610
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameSTEPHEN J DENIGRISCredential: MD
Location Address1383 N MCDOWELL BLVD, STE110Petaluma, CA 94954-1187
Mailing AddressPo Box 27385San Francisco, CA 94127-0385 · (415) 668-9371 · Fax (415) 668-9191
Phone(707) 766-9852
Fax(707) 766-1749
Sole ProprietorYes
Medical School CMSGeorgetown University School Of MedicineGraduated 1988
Enumeration DateAugust 16, 2006
Last NPPES UpdateNovember 13, 2012
✔ NPI 1699888610 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · G87469
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1383 N MCDOWELL BLVD, Petaluma, CA 94954
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Other Identifiers 3

Medicare UPINF58728CA
Medicare PIN00G874690CA
Medicaid00G874690CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID4284691924
PECOS Enrollment IDI20050830000658
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
30 services30 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
28 services28 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
17 services17 patients
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121
Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.
17 services16 patients
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235
This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.
13 services12 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
12 services12 patients

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.

New Patient
$142.00 typical visit price
range $63.04 – $187.01
Typical copayment $35.50 (range $15.76 – $46.75)
Most-billed visit code 99204
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

NORTHERN CALIFORNIA MEDICAL ASSOC INC
Ophthalmology
1383 N MCDOWELL BLVD, STE 100
PETALUMA, CA 94954
Sonoma County (707) 763-6400
MARY M MARTINDALE NP
Nurse Practitioner (Family)
1383 N MCDOWELL BLVD
PETALUMA, CA 94954
Sonoma County (707) 308-2840
NORTH BAY ENDOSCOPY CENTER LLC
Clinic/Center (Ambulatory Surgical)
1383 N MCDOWELL BLVD
PETALUMA, CA 94954
Sonoma County (707) 938-9685
KENNETH MICHAEL PITERS M.D.
Anesthesiology
1383 N MCDOWELL BLVD
PETALUMA, CA 94954
Sonoma County (707) 544-7331
KIMBERLY J SOMMERHAUG NP, MSN
Nurse Practitioner (Family)
1383 N MCDOWELL BLVD, SUITE 110
PETALUMA, CA 94954
Sonoma County (707) 766-9852
EILER JOHN SOMMERHAUG M.D.
Surgery (Plastic and Reconstructive Surgery)
1383 N MCDOWELL BLVD, SUITE 110
PETALUMA, CA 94954
Sonoma County (707) 766-9852
STEPHEN DENIGRIS MD PHD
Internal Medicine (Gastroenterology)
1383 N MCDOWELL BLVD, STE 110
PETALUMA, CA 94954
Sonoma County (707) 766-9852
HEPATOLOGY AND GASTROENTEROLOGY ASSOCIATES INC
Internal Medicine (Gastroenterology)
1383 N MCDOWELL BLVD, STE 110
PETALUMA, CA 94954
Sonoma County (707) 766-9852

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.

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.