Michael Zeligs
Anesthesiology Physician · Boulder, CO
Michael Zeligs is an anesthesiology physician with a practice address in Boulder, Colorado, and NPI 1437186194, issued on Jun 27, 2006. Check the license (Colorado 23543, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael Zeligs
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 23543 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Balsam Ave, Boulder, CO 80304
- Phone
- (303) 440-2092
- Enumerated
- Jun 27, 2006
- Record last updated
- Sep 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 01235431 CO
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,202 in Colorado → Look up another NPI →
Also registered at 1100 Balsam Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brooke Alt, M.D.Anatomic Pathology & Clinical Pathology Physician1326008871
- Jose Angel, MDAnesthesiology Physician1972543254
- David BennerPhysician Assistant1538150966
- Charles Bowles, M.D.Diagnostic Radiology Physician1417922105
- Martha CabeenEmergency Medicine Physician1043295306
- Richard Caffrey, MDAnesthesiology Physician1144270562
Verify Michael Zeligs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 23543Check 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 anesthesiology physician in 2024
33 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
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: $17.48
1 payment: food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 17,774 providers of this specialty with any payment received $669.59 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.
Michael Zeligs among 1,202 anesthesiology physician records in Colorado
Michael Zeligs is one of 1,202 anesthesiology physician records with a practice address in Colorado. 75% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2007 · 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 207L00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Colorado
There are 1,202 anesthesiology physician records in Colorado.
All 1,202 in Colorado → Every provider in Boulder → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Jose Angel, MDBoulder, CO 803041972543254
- Richard Caffrey, MDBoulder, CO 803041144270562
- Peter Castro, M.D.Boulder, CO 803041316986581
- Thomas Chalmers, MDBoulder, CO 803041407807423
- Avninder Dhaliwal, MDBoulder, CO 803041982630497
- Richard Gildersleeve, MDBoulder, CO 803041023044369
- John Harrison, M.D.Boulder, CO 803041093706723
- Anthony Hillenbrand, DOBoulder, CO 803041982630521
Common questions
What is Michael Zeligs's NPI number?
Michael Zeligs's National Provider Identifier (NPI) is 1437186194, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Zeligs located?
The NPPES record lists a practice address at 1100 Balsam Ave, Boulder, CO, 80304. Phone: (303) 440-2092. Providers update this record themselves, so call before visiting.
How can I verify Michael Zeligs's license?
NPPES lists Colorado license number 23543, 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 Michael Zeligs prescribe under Medicare Part D?
In 2024, Michael Zeligs had 33 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.