Mary Ann Watson, PHD
Psychologist · Denver, CO
Mary Ann Watson, PHD is a psychologist with a practice address in Denver, Colorado, and NPI 1639236201, issued on Jan 3, 2007. Check the license (Colorado 420, as entered in NPPES) with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Ann Watson
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 420 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1490 Lafayette Street, Denver, CO 80218
- Phone
- (303) 322-9334
- Enumerated
- Jan 3, 2007
- Record last updated
- Apr 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (303) 832-0044
- Medicare enrollment
- Enrolled (PECOS I20051031000730); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychologist records → All 991 in Colorado → Look up another NPI →
Verify Mary Ann Watson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 420Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Ann Watson among 991 psychologist records in Colorado
Mary Ann Watson, PHD is one of 991 psychologist records with a practice address in Colorado. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 62% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated1969 · median 2006 among the 164 with a school on file
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychologist providers in Colorado
There are 991 psychologist records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 991 in Colorado → Every provider in Denver → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Tamara Dehay, PH.D.Denver, CO 802181760641542
- Natalie Gart, PSY. DDenver, CO 802181639420359
- Elliot Helt, MA, MFT-CDenver, CO 802181063004430
- Jill Hersh, PSY.D.Denver, CO 802181760868913
- Bronwyn Lehman, PSYCHOLOGISTDenver, CO 802181073319208
- Michael Maley, PH.D.Denver, CO 802181063734812
- Kathy Martone, ED.D.Denver, CO 802181316972680
- Megan Miller, PSY.D.Denver, CO 802181578891834
Common questions
What is Mary Ann Watson, PHD's NPI number?
Mary Ann Watson, PHD's National Provider Identifier (NPI) is 1639236201, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Watson, PHD located?
The NPPES record lists a practice address at 1490 Lafayette Street, Denver, CO, 80218. Phone: (303) 322-9334. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Watson, PHD's license?
NPPES lists Colorado license number 420, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity 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. 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.