James M. Theiss, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Mesa, AZ
James M. Theiss, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Mesa, Arizona, and NPI 1891341947, issued on Aug 14, 2019. Check the license (Arizona RPN230939, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James M. Theiss
- Credential
- PMHNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RPN230939 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5439 E Ellis St, Mesa, AZ 85205
- Phone
- (480) 772-0091
- Enumerated
- Aug 14, 2019
- Record last updated
- Aug 14, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,887 in Arizona → Look up another NPI →
Verify James M. Theiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license RPN230939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
405 Medicare Part D claims for 90 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Quetiapine Fumarate42 claims
- Sertraline Hcl25 claims
- Alprazolam21 claims
- Lamotrigine21 claims
- Trazodone Hcl19 claims
- Clonazepam17 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.
James M. Theiss among 1,887 psychiatric/mental health nurse practitioner records in Arizona
James M. Theiss, PMHNP-BC is one of 1,887 psychiatric/mental health nurse practitioner records with a practice address in Arizona. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 39% of them.
- NPI issued2019 · 39% of these records are older, 56% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2019 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
154 psychiatric/mental health nurse practitioner records list a practice address in Mesa
They are 154 of the 9,151 NPPES records with a practice address in Mesa, and 1,887 psychiatric/mental health nurse practitioner records in Arizona.
All 1,887 in Arizona → Every provider in Mesa → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Jennifer Anderson, ADULT PMHNP-BCMesa, AZ 852051326443003
- Dwight Faught, DNP, RN. PMHNP-BCMesa, AZ 852051093050494
- Sally Herman, PMHNP-BCMesa, AZ 852051396440277
- Jacqueline Hoffman, PMHNP-BCMesa, AZ 852051629967898
- Ewelina LucarelliMesa, AZ 852051730796251
- Robin Shepherd, PMHNP-BCMesa, AZ 852051245760420
- Mabel TobahMesa, AZ 852051447004734
- Margarita Arvizu, PMHNPMesa, AZ 852041558058636
Common questions
What is James M. Theiss, PMHNP-BC's NPI number?
James M. Theiss, PMHNP-BC's National Provider Identifier (NPI) is 1891341947, issued on Aug 14, 2019. An NPI identifies a provider in billing; it is not a license.
Where is James M. Theiss, PMHNP-BC located?
The NPPES record lists a practice address at 5439 E Ellis St, Mesa, AZ, 85205. Phone: (480) 772-0091. Providers update this record themselves, so call before visiting.
How can I verify James M. Theiss, PMHNP-BC's license?
NPPES lists Arizona license number RPN230939, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does James M. Theiss, PMHNP-BC prescribe under Medicare Part D?
In 2024, James M. Theiss, PMHNP-BC had 405 Medicare Part D claims for 90 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.