Benjamin Walker Warren, MD
Gastroenterology Physician · Loveland, CO
Benjamin Walker Warren, MD is a gastroenterology physician with a practice address in Loveland, Colorado, and NPI 1912402512, issued on Mar 26, 2018. Check the license (Colorado 74830, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Benjamin Walker Warren
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 74830 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2725 Rocky Mountain Ave Ste 120, Loveland, CO 80538
- Phone
- (970) 669-5432
- Enumerated
- Mar 26, 2018
- Record last updated
- May 5, 2026
- Fax
- (970) 207-1893
- Medicare enrollment
- Enrolled (PECOS I20250605002084); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 2725 Rocky Mountain Ave Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bryan Golubski, M.D. (05/2017)Gastroenterology Physician1609308287
- Sharon Margraf, RNNurse Practitioner1952739336
- Shirish Poudyal, MDInternal Medicine Physician1275062507
- Eileen Quillin, ARNPGerontology Nurse Practitioner1124587928
Verify Benjamin Walker Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 74830Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average gastroenterology physician in 2024
64 Medicare Part D claims for 32 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium27 claims
- Omeprazole12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,115.19
26 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Centers For GastroenterologyLoveland, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Walker Warren among 334 gastroenterology physician records in Colorado
Benjamin Walker Warren, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 93% of them.
- NPI issued2018 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2018 · median 2003 among the 258 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Loveland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Bryan Golubski, M.D. (05/2017)Loveland, CO 805381609308287
- Stephen Burgert, MDLoveland, CO 805371033109699
- Sean Caufield, M.D.Loveland, CO 805371669536439
- Daniel Langer, MDLoveland, CO 805371740268481
- Crystal North, DOLoveland, CO 805371225299803
- Lewis Strong, MDLoveland, CO 805371265415459
- Amir Kalani, MD PHDFort Collins, CO 805261043659022
- Rebecca Dunphy, MDFort Collins, CO 805251508962325
Common questions
What is Benjamin Walker Warren, MD's NPI number?
Benjamin Walker Warren, MD's National Provider Identifier (NPI) is 1912402512, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Walker Warren, MD located?
The NPPES record lists a practice address at 2725 Rocky Mountain Ave Ste 120, Loveland, CO, 80538. Phone: (970) 669-5432. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Walker Warren, MD's license?
NPPES lists Colorado license number 74830, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Benjamin Walker Warren, MD prescribe under Medicare Part D?
In 2024, Benjamin Walker Warren, MD had 64 Medicare Part D claims for 32 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.