NPPES file of Aug 9, 2026

Allison Hammond Reddinger, M.D.

Internal Medicine Physician · Wheat Ridge, CO

Allison Hammond Reddinger, M.D. is an internal medicine physician with a practice address in Wheat Ridge, Colorado, and NPI 1669430138, issued on May 3, 2006. Check the license (Colorado DR.0057430, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669430138
Name
Allison Hammond Reddinger
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
DR.0057430 CO
036102020 IL
Self-reported in NPPES; status is on the state search
Practice location
4803 Ward RD, Wheat Ridge, CO 80033
Phone
(303) 338-4545
Enumerated
May 3, 2006
Record last updated
Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid IDs
0361020201 IL
68613571 CO
Medicare enrollment
Enrolled (PECOS I20161118000230); may accept Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4803 Ward RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rebecca Abraham, MS, RDRegistered Dietitian1124458179
  2. Sharon AdamskiNurse's Aide1083758866
  3. Hope Aguilera, LCSWClinical Social Worker1790148013
  4. Linda Arens, LPNLicensed Practical Nurse1164630307
  5. Valerie Bain, MDFamily Medicine Physician1659690311
  6. Robert Barton, PAPhysician Assistant1982731931

Verify Allison Hammond Reddinger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0057430
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

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3.0 times the Medicare Part D claims of the average internal medicine physician in 2024

9,432 Medicare Part D claims for 706 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 91 claims were for opioids.

  1. Allison Reddinger9,432
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium790 claims
  2. Levothyroxine Sodium576 claims
  3. Rosuvastatin Calcium562 claims
  4. Lisinopril344 claims
  5. Omeprazole329 claims
  6. Alendronate Sodium317 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.

Allison Hammond Reddinger among 2,046 internal medicine physician records in Colorado

Allison Hammond Reddinger, M.D. 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 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1997 · median 2006 among the 1,090 with a school on file
  • Record last updated2021 · 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).

35 internal medicine physician records list a practice address in Wheat Ridge

They are 35 of the 2,472 NPPES records with a practice address in Wheat Ridge, and 2,046 internal medicine physician records in Colorado.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Linda Blust, MDWheat Ridge, CO 800331073568622
  2. Maureen Boehm, MDWheat Ridge, CO 800331306818729
  3. Theodore Buttrick, MDWheat Ridge, CO 800331548214547
  4. Stanton Elzi, MDWheat Ridge, CO 800331417035502
  5. Gerard Federico, DOWheat Ridge, CO 800331598838377
  6. Debra Friesen, M.D.Wheat Ridge, CO 800331962409318
  7. Tahl Humes, DOWheat Ridge, CO 800331255345914
  8. Wendy Kalish, MDWheat Ridge, CO 800331861401150

Common questions

What is Allison Hammond Reddinger, M.D.'s NPI number?

Allison Hammond Reddinger, M.D.'s National Provider Identifier (NPI) is 1669430138, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Allison Hammond Reddinger, M.D. located?

The NPPES record lists a practice address at 4803 Ward RD, Wheat Ridge, CO, 80033. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.

How can I verify Allison Hammond Reddinger, M.D.'s license?

NPPES lists Colorado license number DR.0057430, 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 Allison Hammond Reddinger, M.D. prescribe under Medicare Part D?

In 2024, Allison Hammond Reddinger, M.D. had 9,432 Medicare Part D claims for 706 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.