Donald A. Maschka, M.D.
Otolaryngology Physician · Boulder, CO
Donald A. Maschka, M.D. is an otolaryngology physician with a practice address in Boulder, Colorado, and NPI 1316933484, issued on Sep 23, 2005. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Donald A. Maschka
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 31558 IA
Self-reported in NPPES; status is on the state search - Practice location
- 4745 Arapahoe Ave, Boulder, CO 80303
- Phone
- (303) 443-2771
- Enumerated
- Sep 23, 2005
- Record last updated
- May 24, 2022
- Fax
- (303) 443-2784
- Medicaid ID
- 0148718 IA
- Medicare enrollment
- Enrolled (PECOS I20161216000543); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 188 in Colorado → Look up another NPI →
Also registered at 4745 Arapahoe Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paul Cohen, M.D.Pediatrics Physician1568447894
- Kimdao Collier, PHARMDPharmacist1225310584
- Kevin Cuevas, MDOphthalmology Physician1265418438
Verify Donald A. Maschka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average otolaryngology physician in 2024
198 Medicare Part D claims for 101 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium Bromide57 claims
- Mupirocin26 claims
- Amoxicillin-Clavulanate Potass20 claims
- Hydrochlorothiazide16 claims
- Diazepam11 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: $20.19
1 payment: food and beverage; the largest payer was Aerin Medical Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Boulder Valley Ear Nose And Throat Associates PCBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald A. Maschka among 188 otolaryngology physician records in Colorado
Donald A. Maschka, M.D. is one of 188 otolaryngology physician records with a practice address in Colorado. 81% 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, 92% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1988 · median 2007 among the 136 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Colorado
There are 188 otolaryngology physician records in Colorado.
All 188 in Colorado → Every provider in Boulder → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Andrew Goldman, M.D.Boulder, CO 803031891713152
- Andrew Johnson, MDBoulder, CO 803031811330905
- David Morrissey, M.D.Boulder, CO 803031104844463
- Angela Paddack, M.D.Boulder, CO 803031871767954
- Don Schilling, M.D.Boulder, CO 803031881612141
- James Warren, M.D.Boulder, CO 803031194743450
- Mark Hunter, M.D.Boulder, CO 803041245464692
- William Lillydahl, M.D.Boulder, CO 803041770568982
Common questions
What is Donald A. Maschka, M.D.'s NPI number?
Donald A. Maschka, M.D.'s National Provider Identifier (NPI) is 1316933484, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald A. Maschka, M.D. located?
The NPPES record lists a practice address at 4745 Arapahoe Ave, Boulder, CO, 80303. Phone: (303) 443-2771. Providers update this record themselves, so call before visiting.
How can I verify Donald A. Maschka, M.D.'s license?
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 Donald A. Maschka, M.D. prescribe under Medicare Part D?
In 2024, Donald A. Maschka, M.D. had 198 Medicare Part D claims for 101 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.