William Dunn Mitchell, MD
Pediatrics Physician · Aspen, CO
William Dunn Mitchell, MD is a pediatrics physician with a practice address in Aspen, Colorado, and NPI 1134202575, issued on Oct 21, 2006. Check the license (Colorado 21570, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Dunn Mitchell
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 21570 CO
Self-reported in NPPES; status is on the state search - Practice location
- 630 E Hyman Ave, Aspen, CO 81611
- Phone
- (970) 544-1300
- Enumerated
- Oct 21, 2006
- Record last updated
- Jan 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (970) 544-1334
- Medicaid ID
- 01215706 CO
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,155 in Colorado → Look up another NPI →
Verify William Dunn Mitchell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 21570Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $75.36
1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 21,580 providers of this specialty with any payment received $842.05 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.
William Dunn Mitchell among 1,155 pediatrics physician records in Colorado
William Dunn Mitchell, MD is one of 1,155 pediatrics physician records with a practice address in Colorado. 27% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 27% of these records are
- In the CMS Doctors and Clinicians fileNo · 6% of these records are
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 pediatrics physician records list a practice address in Aspen
They are 4 of the 301 NPPES records with a practice address in Aspen, and 1,155 pediatrics physician records in Colorado.
All 1,155 in Colorado → Every provider in Aspen → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Harvey FahyAspen, CO 816111649394685
- Claudia Nelson, MDAspen, CO 816111285764407
- Rahul Shah, M.D.Aspen, CO 816111558748848
- Leslie Fishman, MDAvon, CO 816201902886997
- Meegan Leve, MDAvon, CO 816201295815694
- Jolysa Bosco, DOGlenwood Springs, CO 816011477134021
- David Brooks, M.D.Glenwood Springs, CO 816011417052044
- Ellen Brooks, MDGlenwood Springs, CO 816011619998796
Common questions
What is William Dunn Mitchell, MD's NPI number?
William Dunn Mitchell, MD's National Provider Identifier (NPI) is 1134202575, issued on Oct 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Dunn Mitchell, MD located?
The NPPES record lists a practice address at 630 E Hyman Ave, Aspen, CO, 81611. Phone: (970) 544-1300. Providers update this record themselves, so call before visiting.
How can I verify William Dunn Mitchell, MD's license?
NPPES lists Colorado license number 21570, 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.
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.