John Thomas O'Steen, M.D.
Family Medicine Physician · Florence, AZ
John Thomas O'Steen, M.D. is a family medicine physician with a practice address in Florence, Arizona, and NPI 1477757995, issued on Jun 11, 2007. Check the license (Arizona 12389, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Thomas O'Steen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 12389 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1155 N Pinal Pkwy, Florence, AZ 85232
- Phone
- (520) 868-3668
- Enumerated
- Jun 11, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (520) 868-3667
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Verify John Thomas O'Steen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 12389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
51 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of 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.
John Thomas O'Steen among 3,119 family medicine physician records in Arizona
John Thomas O'Steen, M.D. is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 family medicine physician records list a practice address in Florence
They are 6 of the 157 NPPES records with a practice address in Florence, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Florence → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thomas Longfellow, D.O.Florence, AZ 852321053476903
- Suzan Al-Saleh, FNP-BCGilbert, AZ 852331033944038
- Mary Fitzpatrick, M.D.Gilbert, AZ 852331225119159
- Donald Pont, M.D.Gilbert, AZ 852331447311717
- Samuel Balk, MDGilbert, AZ 852341164401691
- Philip Goldfarb, MDGilbert, AZ 852341750311569
- David Hatfield, DOGilbert, AZ 852341093767824
- Scott Hatfield, DOGilbert, AZ 852341093752032
Common questions
What is John Thomas O'Steen, M.D.'s NPI number?
John Thomas O'Steen, M.D.'s National Provider Identifier (NPI) is 1477757995, issued on Jun 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas O'Steen, M.D. located?
The NPPES record lists a practice address at 1155 N Pinal Pkwy, Florence, AZ, 85232. Phone: (520) 868-3668. Providers update this record themselves, so call before visiting.
How can I verify John Thomas O'Steen, M.D.'s license?
NPPES lists Arizona license number 12389, 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 John Thomas O'Steen, M.D. prescribe under Medicare Part D?
In 2024, John Thomas O'Steen, M.D. had 51 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.