NPPES file of Aug 9, 2026

John P. Martens, MD

Psychiatry Physician · Wheat Ridge, CO

John P. Martens, MD is a psychiatry physician with a practice address in Wheat Ridge, Colorado, and NPI 1013921527, issued on Jul 28, 2006. Check the license (Colorado 34811, 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
1013921527
Name
John P. Martens
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
34811 CO
Self-reported in NPPES; status is on the state search
Practice location
3400 Lutheran Pkwy, Wheat Ridge, CO 80033
Phone
(303) 467-4000
Enumerated
Jul 28, 2006
Record last updated
Oct 27, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(303) 467-4064
Medicaid ID
28071271 CO
Medicare enrollment
Enrolled (PECOS I20040826001449); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1988
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 3400 Lutheran Pkwy

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

  1. Ashley BessMental Health Counselor1760911531
  2. Thomas Chandler, RNRegistered Nurse1568618791
  3. Michael Dougherty, APRN, CNSPsychiatric/Mental Health Clinical Nurse Specialist1457546814
  4. Shelby Johnson, PHARMDPsychiatric Pharmacist1093186827
  5. Kathleen Middleton, NPAdult Health Nurse Practitioner1265584437
  6. Carol Olson, CNS RXNPsychiatric/Mental Health Nurse Practitioner1972608883

Verify John P. Martens in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 34811
    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.

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3.3 times the Medicare Part D claims of the average psychiatry physician in 2024

3,287 Medicare Part D claims for 129 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. John Martens3,287
  2. Specialty average1,000

Most prescribed

  1. Risperidone193 claims
  2. Clonazepam165 claims
  3. Lamotrigine162 claims
  4. Quetiapine Fumarate160 claims
  5. Clozapine140 claims
  6. Olanzapine136 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.

Bills Medicare through one group practice

  1. Jefferson Center For Mental HealthLakewood, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John P. Martens among 990 psychiatry physician records in Colorado

John P. Martens, MD 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
  • Graduated1988 · median 2009 among the 351 with a school on file
  • Record last updated2010 · 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).

Psychiatry Physician providers in Colorado

There are 990 psychiatry physician records in Colorado.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Charles Clark, MDWheat Ridge, CO 800331104921055
  2. Regina Johnson, MDWheat Ridge, CO 800331144264276
  3. Thomas King, MDWheat Ridge, CO 800331609806876
  4. Barbara Mannel, M.D.Wheat Ridge, CO 800331578775912
  5. Nicholas Sahagian, MDWheat Ridge, CO 800331588222566
  6. David Shepard, D.O.Wheat Ridge, CO 800331659415370
  7. Elizabeth Stevens, D.O.Wheat Ridge, CO 800331780977249
  8. Andrew Teaford, M.D.Wheat Ridge, CO 800331821181199

Common questions

What is John P. Martens, MD's NPI number?

John P. Martens, MD's National Provider Identifier (NPI) is 1013921527, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John P. Martens, MD located?

The NPPES record lists a practice address at 3400 Lutheran Pkwy, Wheat Ridge, CO, 80033. Phone: (303) 467-4000. Providers update this record themselves, so call before visiting.

How can I verify John P. Martens, MD's license?

NPPES lists Colorado license number 34811, 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 John P. Martens, MD prescribe under Medicare Part D?

In 2024, John P. Martens, MD had 3,287 Medicare Part D claims for 129 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.