NPPES file of Aug 9, 2026

Aaron Greenstein, MD

Geriatric Psychiatry Physician · Denver, CO

Aaron Greenstein, MD is a geriatric psychiatry physician with a practice address in Denver, Colorado, and NPI 1154856425, issued on Apr 25, 2017. Check the license (Colorado 0069594, 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
1154856425
Name
Aaron Greenstein
Credential
MD
Primary taxonomy
Geriatric Psychiatry Physician 2084P0805X
License number
0069594 CO
Self-reported in NPPES; status is on the state search
Practice location
162 Adams St. Ste. 201, Denver, CO 80206
Phone
(303) 642-6072
Enumerated
Apr 25, 2017
Record last updated
Oct 4, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Verify Aaron Greenstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 0069594
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

55% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024

669 Medicare Part D claims for 70 beneficiaries, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Aaron Greenstein669
  2. Specialty average1,485

Most prescribed

  1. Clonazepam96 claims
  2. Olanzapine54 claims
  3. Mirtazapine52 claims
  4. Escitalopram Oxalate48 claims
  5. Clozapine39 claims
  6. Venlafaxine Hcl Er39 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: $964.41

3 payments; by number, the most common kind was food and beverage; the largest payer was Lundbeck LLC. The 200 providers of this specialty with any payment received $2,189.26 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Aaron Greenstein$964.41
  2. Specialty average$2,189.26

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

Geriatric Psychiatry Physician providers in Colorado

There are 5 geriatric psychiatry physician records in Colorado.

The 4 geriatric psychiatry physician records with the nearest ZIP codes

  1. Robert Rubey, MDDenver, CO 802201841264819
  2. Hope Beatte, MDDenver, CO 802391194713164
  3. Mark Trubowitz, D.O.Denver, CO 802471619011327
  4. Jennifer Osborne, M.D.Littleton, CO 801271467666396

Common questions

What is Aaron Greenstein, MD's NPI number?

Aaron Greenstein, MD's National Provider Identifier (NPI) is 1154856425, issued on Apr 25, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Greenstein, MD located?

The NPPES record lists a practice address at 162 Adams St. Ste. 201, Denver, CO, 80206. Phone: (303) 642-6072. Providers update this record themselves, so call before visiting.

How can I verify Aaron Greenstein, MD's license?

NPPES lists Colorado license number 0069594, 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 Aaron Greenstein, MD prescribe under Medicare Part D?

In 2024, Aaron Greenstein, MD had 669 Medicare Part D claims for 70 beneficiaries; the average among geriatric psychiatry physician prescribers was 1,485. 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.