Abraham L. Brass, M.D.
Gastroenterology Physician · Fort Collins, CO
Abraham L. Brass, M.D. is a gastroenterology physician with a practice address in Fort Collins, Colorado, and NPI 1710946082, issued on Mar 23, 2006. Check the license (Colorado 61455, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Abraham L. Brass
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 61455 CO
230656 MA
32268 WV
Self-reported in NPPES; status is on the state search - Practice location
- 3702 S Timberline RD Ste A, Fort Collins, CO 80525
- Phone
- (970) 207-9773
- Enumerated
- Mar 23, 2006
- Record last updated
- May 5, 2026
- Medicare enrollment
- Enrolled (PECOS I20190103002493); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 3702 S Timberline RD Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Cassetta, PA-CPhysician Assistant1467917211
- Cheyenne Clayson, PA-CPhysician Assistant1306339197
- Jaclyn FacklerGastroenterology Physician1174984801
- Christa Rutledge, FNP-CFamily Nurse Practitioner1023807401
- Patrick Webb, M.D.Gastroenterology Physician1851447668
- Joshua Williams, PA-CPhysician Assistant1891414207
Verify Abraham L. Brass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 61455Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average gastroenterology physician in 2024
523 Medicare Part D claims for 392 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Peg 3350-Electrolyte253 claims
- Omeprazole57 claims
- Famotidine31 claims
- Peg-3350 And Electrolytes30 claims
- Colestipol Hcl20 claims
- Sod Sulf-Potass Sulf-Mag Sulf16 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: $280.50
10 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 GastroenterologyFort Collins, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Abraham L. Brass among 334 gastroenterology physician records in Colorado
Abraham L. Brass, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 53% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2001 · 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 Fort Collins → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Rand Compton, MDFort Collins, CO 805251265538078
- Rebecca Dunphy, MDFort Collins, CO 805251508962325
- Mark Durkan, MDFort Collins, CO 805251992801781
- Jaclyn FacklerFort Collins, CO 805251174984801
- Daniel HamptonFort Collins, CO 805251154597979
- Rodney Holland, M.D.Fort Collins, CO 805251225134018
- Joseph Jenkins, MDFort Collins, CO 805251588760318
- Nicole Kershner, M.D.Fort Collins, CO 805251366615056
Common questions
What is Abraham L. Brass, M.D.'s NPI number?
Abraham L. Brass, M.D.'s National Provider Identifier (NPI) is 1710946082, issued on Mar 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Abraham L. Brass, M.D. located?
The NPPES record lists a practice address at 3702 S Timberline RD Ste A, Fort Collins, CO, 80525. Phone: (970) 207-9773. Providers update this record themselves, so call before visiting.
How can I verify Abraham L. Brass, M.D.'s license?
NPPES lists Colorado license number 61455, 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 Abraham L. Brass, M.D. prescribe under Medicare Part D?
In 2024, Abraham L. Brass, M.D. had 523 Medicare Part D claims for 392 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.