Samuel Arnold Nelson, MD
Psychiatry Physician · Tucson, AZ
Samuel Arnold Nelson, MD is a psychiatry physician with a practice address in Tucson, Arizona, and NPI 1063443281, issued on Jul 5, 2006. Check the license (Arizona 7590, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Samuel Arnold Nelson
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 7590 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 518 E 1St St, Tucson, AZ 85705
- Phone
- (520) 623-8556
- Enumerated
- Jul 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (520) 896-2277
- Medicaid ID
- 243460 AZ
- Medicare enrollment
- Enrolled (PECOS I20051115000124); may accept Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1968
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 942 in Arizona → Look up another NPI →
Verify Samuel Arnold Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 7590Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% more Medicare Part D claims than the average psychiatry physician in 2024
1,583 Medicare Part D claims for 94 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Alprazolam180 claims
- Dextroamphetamine-Amphetamine175 claims
- Zolpidem Tartrate83 claims
- Clonazepam68 claims
- Lorazepam64 claims
- Fluoxetine Hcl62 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.
Samuel Arnold Nelson among 942 psychiatry physician records in Arizona
Samuel Arnold Nelson, MD 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1968 · median 2007 among the 382 with a school on file
- Record last updated2007 · 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).
266 psychiatry physician records list a practice address in Tucson
They are 266 of the 18,788 NPPES records with a practice address in Tucson, and 942 psychiatry physician records in Arizona.
All 942 in Arizona → Every provider in Tucson → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Richard Barnes, M.D.Tucson, AZ 857051417983339
- Aura Lee Motus, M.D.Tucson, AZ 857051336422500
- Judith Shay, M.D.Tucson, AZ 857051073629796
- Jamil AlhassanTucson, AZ 857041932605300
- Neeraj Chauhan, D.O.Tucson, AZ 857041518372291
- Mary Connolly, M.D.Tucson, AZ 857041912932229
- Marion Douglass, MDTucson, AZ 857041720054299
- Tyler Dowling, M.D.Tucson, AZ 857041104231851
Common questions
What is Samuel Arnold Nelson, MD's NPI number?
Samuel Arnold Nelson, MD's National Provider Identifier (NPI) is 1063443281, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Arnold Nelson, MD located?
The NPPES record lists a practice address at 518 E 1St St, Tucson, AZ, 85705. Phone: (520) 623-8556. Providers update this record themselves, so call before visiting.
How can I verify Samuel Arnold Nelson, MD's license?
NPPES lists Arizona license number 7590, 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 Samuel Arnold Nelson, MD prescribe under Medicare Part D?
In 2024, Samuel Arnold Nelson, MD had 1,583 Medicare Part D claims for 94 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.