NPPES file of Aug 9, 2026

Jonathan Isaac Ritvo, M.D.

Addiction Psychiatry Physician · Denver, CO

Jonathan Isaac Ritvo, M.D. is an addiction psychiatry physician with a practice address in Denver, Colorado, and NPI 1376516252, issued on Feb 9, 2006. Check the license (Colorado 19307, 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
1376516252
Name
Jonathan Isaac Ritvo
Credential
M.D.
Primary taxonomy
Addiction Psychiatry Physician 2084P0802X
License number
19307 CO
Self-reported in NPPES; status is on the state search
Practice location
501 S Cherry St, Denver, CO 80246
Phone
(303) 333-3163
Enumerated
Feb 9, 2006
Record last updated
Feb 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(303) 399-0232
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.
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Also registered at 501 S Cherry St

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

  1. Paula Armstrong, M.S, FNPNurse Practitioner1356455596
  2. Linda De Leon, AGPCNP-BCNurse Practitioner1841849171
  3. Steven Grabowski, MDPublic Health & General Preventive Medicine Physician1578655510
  4. Cynthia HarrisonMedical Art Specialist/Technologist1962969709
  5. Jane McCabe, APRN, CNSClinical Nurse Specialist1558448985
  6. Joanne Ritvo, M.D.Psychiatry Physician1093788978

Verify Jonathan Isaac Ritvo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 19307    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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38% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024

441 Medicare Part D claims for 33 beneficiaries, against an average of 716 among the 421 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 106 claims were for opioids.

  1. Jonathan Ritvo441
  2. Specialty average716

Most prescribed

  1. Oxycodone Hcl47 claims
  2. Diazepam31 claims
  3. Lorazepam29 claims
  4. Trazodone Hcl26 claims
  5. Buprenorphine-Naloxone23 claims
  6. Hydrocodone-Acetaminophen23 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.

Addiction Psychiatry Physician providers in Colorado

There are 16 addiction psychiatry physician records in Colorado.

All 16 in Colorado → Every provider in Denver →

Other addiction psychiatry physician records in Colorado

  1. Shaweta Babbar, M.D.Denver, CO1720304264
  2. Elizabeth Bhargava, MDBoulder, CO1568541993
  3. Dayan Colon-Sanchez, M.D.Littleton, CO1851683387
  4. Martin Hinrichs, MDDenver, CO1902331432
  5. Ruth Huhn, MDAurora, CO1356634323
  6. Jane Kennedy, D.O.Denver, CO1336205137
  7. Scott McClure, MDColorado Springs, CO1700938289
  8. Maria McGrane, MDLakewood, CO1801956982
  9. Alexis Ritvo, MD MPHAurora, CO1891051090
  10. Katherine Riva, M.D.Denver, CO1013336452

Common questions

What is Jonathan Isaac Ritvo, M.D.'s NPI number?

Jonathan Isaac Ritvo, M.D.'s National Provider Identifier (NPI) is 1376516252, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Isaac Ritvo, M.D. located?

The NPPES record lists a practice address at 501 S Cherry St, Denver, CO, 80246. Phone: (303) 333-3163. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Isaac Ritvo, M.D.'s license?

NPPES lists Colorado license number 19307, 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 Jonathan Isaac Ritvo, M.D. prescribe under Medicare Part D?

In 2024, Jonathan Isaac Ritvo, M.D. had 441 Medicare Part D claims for 33 beneficiaries; the average among addiction psychiatry physician prescribers was 716. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.