Dr. John W. Pyne, MD

  • Riverside, CA
  • Gastroenterologist
NPI1679640536PAC ID5698728293
Part D claims, 2024
853
Hospital affiliations
1
Industry payments
$259
Medical group
1
Insurance carriers
2
Practice address
10800 Magnolia Avenue, Riverside, CA 92505
Practice phone
Call (951) 353-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Riverside Medical Center

Hospital · Riverside, California

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Dr. John W. Pyne is a gastroenterologist in Riverside, California

Dr. Pyne practices at Riverside Medical Center in Riverside, California, part of Kaiser Permanente.

Dr. Pyne's NPI, 1679640536, was assigned on November 29, 2006. Dr. Pyne graduated from MCP-Hahnemann College of Medicine in 1990. Dr. Pyne holds California license G74301.

NPI and contact details
Medicare PAC ID
5698728293
NPI enumeration date
November 29, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(951) 353-2000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. John W. Pyne practices at Riverside Medical Center in Riverside, California

Dr. Pyne's primary practice is Riverside Medical Center, at 10800 Magnolia Avenue, Riverside, CA 92505 in Riverside County. The practice phone is (951) 353-2000.

Source: Dmand AI Affiliation Data

Dr. John W. Pyne is affiliated with 1 site of care and 1 medical group

Dr. Pyne's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. John W. Pyne's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pyne practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Riverside Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John W. Pyne is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Pyne's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Pyne is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Pyne is licensed in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense G74301 · 1992 to 2026 · taxonomy 207RG0100X

Gastroenterologists near Dr. Pyne

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. John W. Pyne's patients have a median age of 58

Across all payers, Dmand AI patient panel data puts Dr. Pyne's median patient age at 58, with 64% women.

Dr. Pyne's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 58

Patient panel by sex, all payers

  • Women64%
  • Men35%

Source: Dmand AI Patient Panel Data

Dr. John W. Pyne wrote 853 Medicare Part D claims in 2024

In 2024, Dr. Pyne wrote 853 Medicare Part D claims for 416 patients. 84% of them were for generic drugs. CMS names the drug for 735 of them, across 16 drugs with 11 or more claims each, at $165,958 in total drug cost. In 2023, CMS named 681 claims across 17 drugs.

Part D claims, 2024853
Drugs named by CMS16
Total drug cost$165,958
Part D patients416

Dr. Pyne's Part D claims by kind of drug, 2024

  • Generic720 claims84%
  • Brand-name133 claims16%

Dr. Pyne's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Pyne's Part D claims, 2024

  • Antibiotics5%42 of 853 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6812024: 7358%

Drugs named by CMS: 16 in 2024, 17 in 2023.

See all prescribing by Dr. Pyne

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. John W. Pyne takes part in Medicare

Dr. Pyne accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. John W. Pyne received $259 in industry payments from 2019 to 2022

CMS Open Payments shows 3 general payments to Dr. Pyne from 3 drug and device companies from 2019 to 2022. Food and beverage make up the largest share, 100% of the total. Ironwood Pharmaceuticals, Inc paid the most, $125.

General payments to Dr. Pyne by program year, 2019 to 2022

Companies that paid Dr. Pyne the most, 2019 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Pyne

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John W. Pyne has 1 award and honors on record

Dmand AI lists 1 award for Dr. Pyne, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Pyne

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. John W. Pyne graduated from MCP-Hahnemann College of Medicine

Dr. Pyne graduated from MCP-Hahnemann College of Medicine in 1990.

  1. Medical schoolMCP-Hahnemann College of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. John W. Pyne accepts plans from 2 insurance carriers

Dr. Pyne is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Pyne accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. John W. Pyne's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John W. Pyne

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. John W. Pyne's NPI number?

Dr. John W. Pyne's NPI number is 1679640536. It was assigned on November 29, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. John W. Pyne?

Dr. John W. Pyne is a gastroenterologist in Riverside, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. John W. Pyne practice?

Dr. Pyne practices at 10800 Magnolia Avenue, Riverside, CA 92505. Dr. Pyne's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente.

What is Dr. John W. Pyne's office phone number?

The practice phone on file for Dr. Pyne is (951) 353-2000.

What is Dr. John W. Pyne's medical license number?

Dr. Pyne holds California license G74301.

Which hospitals is Dr. John W. Pyne affiliated with?

Dr. Pyne practices at Riverside Medical Center in Riverside, California.

What medical group is Dr. John W. Pyne part of?

Dr. Pyne is linked to Southern California Permanente Medical Group.

Does Dr. John W. Pyne accept Medicare?

Yes. CMS lists Dr. Pyne as accepting Medicare assignment.

Is Dr. John W. Pyne board certified?

Yes. Dr. Pyne is board certified in gastroenterology by the American Board of Internal Medicine.

Where did Dr. John W. Pyne go to medical school?

Dr. Pyne graduated from MCP-Hahnemann College of Medicine in 1990.

Show 4 more questionsShow fewer questions

What drugs does Dr. John W. Pyne prescribe most?

In 2024 Medicare Part D data, Dr. Pyne's most prescribed drugs by claims were Gavilyte-C, Omeprazole and Pantoprazole Sodium.

Has Dr. John W. Pyne received payments from drug or device companies?

CMS Open Payments shows $259 in general payments to Dr. Pyne from 3 companies from 2019 to 2022. The largest total came from Ironwood Pharmaceuticals, Inc.

How long has Dr. John W. Pyne been practicing?

Dr. Pyne graduated from medical school in 1990, 36 years ago.

What insurance does Dr. John W. Pyne accept?

Dr. Pyne is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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