James J. Mahoney, D.O
Family Medicine Physician · Southlake, TX
James J. Mahoney, D.O is a family medicine physician with a practice address in Southlake, Texas, and NPI 1578778866, issued on May 11, 2007. Check the license (Texas HO591, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James J. Mahoney
- Credential
- D.O
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- HO591 TX
Self-reported in NPPES; status is on the state search - Practice location
- 550 N Carroll Ave, Southlake, TX 76092
- Phone
- (817) 481-2444
- Enumerated
- May 11, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (817) 421-0277
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 550 N Carroll Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kayla MilesFamily Medicine Physician1194205922
- Danielle Ness, FNP-CFamily Nurse Practitioner1306551536
Verify James J. Mahoney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license HO591Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
263 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Liothyronine Sodium13 claims
- Anastrozole12 claims
- Azithromycin11 claims
- Tramadol Hcl11 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 J. Mahoney among 11,119 family medicine physician records in Texas
James J. Mahoney, D.O is one of 11,119 family medicine physician records with a practice address in Texas. 82% 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 · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2007 · 51% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 family medicine physician records list a practice address in Southlake
They are 34 of the 1,506 NPPES records with a practice address in Southlake, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Southlake → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Susan Anderson, MDSouthlake, TX 760921114927118
- Kelly Cunningham, M.D.Southlake, TX 760921457491227
- Michael Dotti, M.D.Southlake, TX 760921497718936
- Donald Dunlap, D.O.Southlake, TX 760921518995752
- Christopher King, MDSouthlake, TX 760921750382461
- Lori King, MDSouthlake, TX 760921891796074
- Daniel Melville, MDSouthlake, TX 760921881646255
- Ronnie Mitchell, D. O.Southlake, TX 760921043212343
Common questions
What is James J. Mahoney, D.O's NPI number?
James J. Mahoney, D.O's National Provider Identifier (NPI) is 1578778866, issued on May 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James J. Mahoney, D.O located?
The NPPES record lists a practice address at 550 N Carroll Ave, Southlake, TX, 76092. Phone: (817) 481-2444. Providers update this record themselves, so call before visiting.
How can I verify James J. Mahoney, D.O's license?
NPPES lists Texas license number HO591, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James J. Mahoney, D.O prescribe under Medicare Part D?
In 2024, James J. Mahoney, D.O had 263 Medicare Part D claims for 53 beneficiaries; 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.