NPPES file of Aug 9, 2026

Stephen M. Popkin, M.D.

Psychiatry Physician · Denver, CO

Stephen M. Popkin, M.D. is a psychiatry physician with a practice address in Denver, Colorado, and NPI 1326004797, issued on Apr 25, 2006. Check the license (Colorado 22521, 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
1326004797
Name
Stephen M. Popkin
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
22521 CO
Self-reported in NPPES; status is on the state search
Practice location
425 S Cherry St, Denver, CO 80246
Phone
(303) 759-3215
Enumerated
Apr 25, 2006
Record last updated
Sep 9, 2024
Fax
(303) 771-3765
Medicaid ID
01225218 CO
Medicare enrollment
Enrolled (PECOS I20101220000319); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1978
Telehealth
Offers telehealth (CMS)
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 425 S Cherry St

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

  1. Julian Ang, PH.D.Clinical Psychologist1710075890
  2. Alisha BauerMassage Therapist1376960716
  3. Robert Blaich, D.C.Chiropractor1659571040
  4. Jessie Briegel, LMFTMarriage & Family Therapist1518736388
  5. John Brockway, D.C.Chiropractor1760612634
  6. Francesco Campanile, M.D.Specialist1568468056

Verify Stephen M. Popkin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 22521
    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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28% more Medicare Part D claims than the average psychiatry physician in 2024

1,283 Medicare Part D claims for 76 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Stephen Popkin1,283
  2. Specialty average1,000

Most prescribed

  1. Alprazolam105 claims
  2. Clonazepam78 claims
  3. Lorazepam76 claims
  4. Quetiapine Fumarate73 claims
  5. Lamotrigine53 claims
  6. Bupropion Xl41 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: $801.18

31 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Popkin$801.18
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Stephen M. Popkin among 990 psychiatry physician records in Colorado

Stephen M. Popkin, M.D. is one of 990 psychiatry physician records with a practice address in Colorado. 65% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 35% of these records are
  • Graduated1978 · median 2009 among the 351 with a school on file
  • Record last updated2024 · 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 2084P0800X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

291 psychiatry physician records list a practice address in Denver

They are 291 of the 25,068 NPPES records with a practice address in Denver, and 990 psychiatry physician records in Colorado.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Stephen Bishop, MDDenver, CO 802461346263860
  2. Gary Hoggan, M.D.Denver, CO 802461114950102
  3. Rebecca Lewin, MDDenver, CO 802461033224019
  4. Frederick Miller, M. D.Denver, CO 802461528160116
  5. William Niederhut, M.D.Denver, CO 802461982639084
  6. Rachel Norwood, MDDenver, CO 802461467539452
  7. Janice Petersen, MDDenver, CO 802461740351899
  8. Joanne Ritvo, M.D.Denver, CO 802461093788978

Common questions

What is Stephen M. Popkin, M.D.'s NPI number?

Stephen M. Popkin, M.D.'s National Provider Identifier (NPI) is 1326004797, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen M. Popkin, M.D. located?

The NPPES record lists a practice address at 425 S Cherry St, Denver, CO, 80246. Phone: (303) 759-3215. Providers update this record themselves, so call before visiting.

How can I verify Stephen M. Popkin, M.D.'s license?

NPPES lists Colorado license number 22521, 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 Stephen M. Popkin, M.D. prescribe under Medicare Part D?

In 2024, Stephen M. Popkin, M.D. had 1,283 Medicare Part D claims for 76 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.