Thomas K. Nelson, M.D.
Psychiatry Physician · Scottsdale, AZ
Thomas K. Nelson, M.D. is a psychiatry physician with a practice address in Scottsdale, Arizona, and NPI 1902889108, issued on Nov 22, 2005. Check the license (Arizona 18684, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas K. Nelson
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 18684 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13400 E Shea Blvd, Scottsdale, AZ 85259
- Phone
- (480) 301-8000
- Enumerated
- Nov 22, 2005
- Record last updated
- Jan 5, 2022
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 942 in Arizona → Look up another NPI →
Also registered at 13400 E Shea Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas K. Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 18684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
19 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Thomas K. Nelson among 942 psychiatry physician records in Arizona
Thomas K. Nelson, M.D. is one of 942 psychiatry physician records with a practice address in Arizona. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 41% of these records are
- Record last updated2022 · 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Arizona
There are 942 psychiatry physician records in Arizona.
All 942 in Arizona → Every provider in Scottsdale → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Osama Abulseoud, MDScottsdale, AZ 852591679654800
- Robert Bright, M.D.Scottsdale, AZ 852591215961651
- Claudine Egol, M.D.Scottsdale, AZ 852591285876557
- Mark Imig, M.D.Scottsdale, AZ 852591134240245
- Neeta Jain, MDScottsdale, AZ 852591932122074
- Shweta Kapoor, MD, PHDScottsdale, AZ 852591689020737
- David Katzelnick, M.D.Scottsdale, AZ 852591457556656
- Lois Krahn, M.D.Scottsdale, AZ 852591568446854
Common questions
What is Thomas K. Nelson, M.D.'s NPI number?
Thomas K. Nelson, M.D.'s National Provider Identifier (NPI) is 1902889108, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas K. Nelson, M.D. located?
The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Thomas K. Nelson, M.D.'s license?
NPPES lists Arizona license number 18684, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas K. Nelson, M.D. prescribe under Medicare Part D?
In 2024, Thomas K. Nelson, M.D. had 19 Medicare Part D claims; 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.