Kathleen Monahan, DO
Internal Medicine Physician · Boulder, CO
Kathleen Monahan, DO is an internal medicine physician with a practice address in Boulder, Colorado, and NPI 1740712975, issued on Mar 28, 2017. Check the license (Colorado DR.0072742, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen Monahan
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DR.0072742 CO
Self-reported in NPPES; status is on the state search - Practice location
- 4715 Arapahoe Ave, Boulder, CO 80303
- Phone
- (303) 385-2000
- Enumerated
- Mar 28, 2017
- Record last updated
- May 22, 2024
- Fax
- (033) 267-4419
- Medicare enrollment
- Enrolled (PECOS I20240613000748); accepts Medicare assignment
- Medical or professional school
- Rocky Vista University College Of Osteopathic Med, 2017
- 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 4715 Arapahoe Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen Monahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0072742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
151 Medicare Part D claims for 77 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Anastrozole45 claims
- Letrozole12 claims
- Tamoxifen Citrate12 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: $69.05
1 payment: food and beverage; the largest payer was BeiGene USA, 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 Cancer Centers LLPBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Monahan among 2,046 internal medicine physician records in Colorado
Kathleen Monahan, DO 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 2017, is newer than 85% of them.
- NPI issued2017 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2017 · median 2006 among the 1,090 with a school on file
- Record last updated2024 · 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).
74 internal medicine physician records list a practice address in Boulder
They are 74 of the 5,635 NPPES records with a practice address in Boulder, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Boulder → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Mark Haimes, MDBoulder, CO 803031114908613
- Stephen Hoerler, M.D.Boulder, CO 803031962404400
- Benjamin Keidan, MDBoulder, CO 803031316032584
- Stefanie Krenz, MDBoulder, CO 803031982676250
- Valerie Lipetz, MDBoulder, CO 803031356323745
- Diana Mancini, MDBoulder, CO 803031619990090
Common questions
What is Kathleen Monahan, DO's NPI number?
Kathleen Monahan, DO's National Provider Identifier (NPI) is 1740712975, issued on Mar 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Monahan, DO located?
The NPPES record lists a practice address at 4715 Arapahoe Ave, Boulder, CO, 80303. Phone: (303) 385-2000. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Monahan, DO's license?
NPPES lists Colorado license number DR.0072742, 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 Kathleen Monahan, DO prescribe under Medicare Part D?
In 2024, Kathleen Monahan, DO had 151 Medicare Part D claims for 77 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.