Colleen A. Weissmann, MD
Internal Medicine Physician · Loveland, CO
Colleen A. Weissmann, MD is an internal medicine physician with a practice address in Loveland, Colorado, and NPI 1760465959, issued on Nov 22, 2005. Check the license (Colorado 33316, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Colleen A. Weissmann
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 33316 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2923 Ginnala Dr, Loveland, CO 80538
- Phone
- (970) 669-6660
- Enumerated
- Nov 22, 2005
- Record last updated
- May 19, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (970) 663-0721
- Medicaid ID
- 01333160 CO
- Medicare enrollment
- Enrolled (PECOS I20041006000397); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 2923 Ginnala Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Srinivas Bandi, MDNeurology Physician1093831687
- Julia Cuervo, M.D.Internal Medicine Physician1275500787
- Zachary Flake, MDFamily Medicine Physician1912946377
- Niamh Gillespie, PA-CPhysician Assistant1437857190
- Shauna Grady, D.O.Internal Medicine Physician1164867735
- Lori Hollos, M.D.Family Medicine Physician1326083999
Verify Colleen A. Weissmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 33316Check 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 internal medicine physician in 2024
243 Medicare Part D claims for 50 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Buprenorphine-Naloxone109 claims
- Buprenorphine Hcl15 claims
- Suboxone14 claims
- Buspirone Hcl12 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: $477.61
28 payments; by number, the most common kind was food and beverage; the largest payer was Indivior Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Rocky Mountain Clinics LLCFort Collins, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colleen A. Weissmann among 2,046 internal medicine physician records in Colorado
Colleen A. Weissmann, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1988 · median 2006 among the 1,090 with a school on file
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 internal medicine physician records list a practice address in Loveland
They are 28 of the 2,113 NPPES records with a practice address in Loveland, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Loveland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Grace Alessi, MDLoveland, CO 805381457381964
- Nathan Ayer, M.D., M.P.H.Loveland, CO 805381457361172
- Sheila Copple, D.O.Loveland, CO 805381255384087
- Julia Cuervo, M.D.Loveland, CO 805381275500787
- Sarvin Emami, MDLoveland, CO 805381154304376
- Bertrand Honea, M.D.Loveland, CO 805381194742981
- Kevin Keefe, DOLoveland, CO 805381689663684
- William Lopez, M.D.Loveland, CO 805381023015807
Common questions
What is Colleen A. Weissmann, MD's NPI number?
Colleen A. Weissmann, MD's National Provider Identifier (NPI) is 1760465959, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Colleen A. Weissmann, MD located?
The NPPES record lists a practice address at 2923 Ginnala Dr, Loveland, CO, 80538. Phone: (970) 669-6660. Providers update this record themselves, so call before visiting.
How can I verify Colleen A. Weissmann, MD's license?
NPPES lists Colorado license number 33316, 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 Colleen A. Weissmann, MD prescribe under Medicare Part D?
In 2024, Colleen A. Weissmann, MD had 243 Medicare Part D claims for 50 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.