Carl Kelly Aldin, MD
Internal Medicine Physician · Boulder, CO
Carl Kelly Aldin, MD is an internal medicine physician with a practice address in Boulder, Colorado, and NPI 1932728565, issued on Apr 14, 2020. Check the license (Colorado 0071898, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Carl Kelly Aldin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0071898 CO
Self-reported in NPPES; status is on the state search - Practice location
- 4747 Arapahoe Ave, Boulder, CO 80303
- Phone
- (303) 415-7000
- Enumerated
- Apr 14, 2020
- Record last updated
- Sep 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20231012001597); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 2020
- 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 4747 Arapahoe Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Chase Allen, PHARMDPharmacist1902727399
- Alice Ames, RDNRegistered Dietitian1013631084
- Lowell Anderson-Reitz, NPAdult Health Nurse Practitioner1255374849
- Dhiraj AnkolekarHospitalist Physician1649929464
Verify Carl Kelly Aldin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 0071898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,754 Medicare Part D claims for 478 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 67 claims were for opioids.
Most prescribed
- Atorvastatin Calcium144 claims
- Amlodipine Besylate102 claims
- Levothyroxine Sodium88 claims
- Lisinopril63 claims
- Losartan Potassium58 claims
- Zolpidem Tartrate53 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.
The MIPS final score for 2023 (Medicare payment program): 96.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.63
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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.
One hospital affiliation
- Boulder Community HealthBoulder, CO · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Carl Kelly Aldin among 2,046 internal medicine physician records in Colorado
Carl Kelly Aldin, 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 2020, is newer than 91% of them.
- NPI issued2020 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2020 · median 2006 among the 1,090 with a school on file
- Record last updated2023 · 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 Carl Kelly Aldin, MD's NPI number?
Carl Kelly Aldin, MD's National Provider Identifier (NPI) is 1932728565, issued on Apr 14, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Carl Kelly Aldin, MD located?
The NPPES record lists a practice address at 4747 Arapahoe Ave, Boulder, CO, 80303. Phone: (303) 415-7000. Providers update this record themselves, so call before visiting.
How can I verify Carl Kelly Aldin, MD's license?
NPPES lists Colorado license number 0071898, 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 Carl Kelly Aldin, MD prescribe under Medicare Part D?
In 2024, Carl Kelly Aldin, MD had 1,754 Medicare Part D claims for 478 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Carl Kelly Aldin, MD's MIPS final score?
The 2023 MIPS final score is 96.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.