NPPES file of Aug 9, 2026

Marshal Earl Ash, DO

Psychiatry Physician · Colorado Springs, CO

Marshal Earl Ash, DO is a psychiatry physician with a practice address in Colorado Springs, Colorado, and NPI 1255829719, issued on Apr 30, 2018. Check the license (Colorado DR.0070475, 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
1255829719
Name
Marshal Earl Ash
Credential
DO
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
DR.0070475 CO
Self-reported in NPPES; status is on the state search
Practice location
1815 Jet Wing Dr, Colorado Springs, CO 80916
Phone
(719) 632-5700
Enumerated
Apr 30, 2018
Record last updated
Aug 24, 2023
Medicare enrollment
Enrolled (PECOS I20230511002102); accepts Medicare assignment
Medical or professional school
Rocky Vista University College Of Osteopathic Med, 2018
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 1815 Jet Wing Dr

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

  1. Emma Bonwell, PAPhysician Assistant1124739024
  2. Amanda Dicristina, RDHDental Hygienist1831577964
  3. Vincent Markovitz, DDSPublic Health Dentistry1124694898
  4. Margaret Quijada, RDHDental Hygienist1891687810
  5. Brenna RaoPediatrics Physician1740984830
  6. Moriah Roe, RDHDental Hygienist1710710652

Verify Marshal Earl Ash in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0070475
    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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3.0 times the Medicare Part D claims of the average psychiatry physician in 2024

3,040 Medicare Part D claims for 156 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Marshal Ash3,040
  2. Specialty average1,000

Most prescribed

  1. Sertraline Hcl256 claims
  2. Risperidone206 claims
  3. Escitalopram Oxalate179 claims
  4. Aripiprazole168 claims
  5. Quetiapine Fumarate151 claims
  6. Fluoxetine Hcl148 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. Peak Vista Community Health CentersColorado Springs, CO

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

Marshal Earl Ash among 990 psychiatry physician records in Colorado

Marshal Earl Ash, DO 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 2018, is newer than 85% of them.

  • NPI issued2018 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 35% of these records are
  • Graduated2018 · median 2009 among the 351 with a school on file
  • Record last updated2023 · 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. Frederick Michel, MDColorado Springs, CO 809161720092802
  2. Laura Williams, DOColorado Springs, CO 809161417419292
  3. Joseph Chozinski, MDPeterson Afb, CO 809141124011655
  4. Dawn Dawson, MDColorado Springs, CO 809181073571857
  5. Timothy Gannon, MDColorado Springs, CO 809141508952847
  6. Roy Gildersleeve, DO, MSColorado Springs, CO 809141073260881
  7. Julia Hajibrahim, MDColorado Springs, CO 809181194942136
  8. Charles Haverty, DOColorado Springs, CO 809181578022612

Common questions

What is Marshal Earl Ash, DO's NPI number?

Marshal Earl Ash, DO's National Provider Identifier (NPI) is 1255829719, issued on Apr 30, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Marshal Earl Ash, DO located?

The NPPES record lists a practice address at 1815 Jet Wing Dr, Colorado Springs, CO, 80916. Phone: (719) 632-5700. Providers update this record themselves, so call before visiting.

How can I verify Marshal Earl Ash, DO's license?

NPPES lists Colorado license number DR.0070475, 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 Marshal Earl Ash, DO prescribe under Medicare Part D?

In 2024, Marshal Earl Ash, DO had 3,040 Medicare Part D claims for 156 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.