James Michael Neff, M.D.
Internal Medicine Physician · Corpus Christi, TX
James Michael Neff, M.D. is an internal medicine physician with a practice address in Corpus Christi, Texas, and NPI 1013992015, issued on Dec 13, 2005. Check the license (Texas G2795, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Michael Neff
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G2795 TX
Self-reported in NPPES; status is on the state search - Practice location
- 7121 S Padre Island Dr, Corpus Christi, TX 78412
- Phone
- (361) 696-6200
- Enumerated
- Dec 13, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (361) 696-6054
- Medicare enrollment
- Enrolled (PECOS I20100209000771); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1979
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 7121 S Padre Island Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Michael Neff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G2795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
13,189 Medicare Part D claims for 836 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 388 claims were for opioids.
Most prescribed
- Atorvastatin Calcium954 claims
- Rosuvastatin Calcium560 claims
- Levothyroxine Sodium525 claims
- Losartan Potassium450 claims
- Amlodipine Besylate420 claims
- Metoprolol Succinate398 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.
Bills Medicare through 2 group practices
- Christus Trinity ClinicCorpus Christi, TX
- Shea Physical Therapy Specialists LLCCorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Michael Neff among 9,175 internal medicine physician records in Texas
James Michael Neff, M.D. is one of 9,175 internal 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1979 · median 2004 among the 6,088 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 internal medicine physician records list a practice address in Corpus Christi
They are 99 of the 5,600 NPPES records with a practice address in Corpus Christi, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Corpus Christi → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Asmik Asatrian, MDCorpus Christi, TX 784121912384793
- Roberto Del Cristo, M.DCorpus Christi, TX 784121124133723
- James Hines, MDCorpus Christi, TX 784121588925556
- Scott Howell, M.D.Corpus Christi, TX 784121215912753
- Amandeep Kaur, D.O.Corpus Christi, TX 784121629439179
- Eric Madarang, DOCorpus Christi, TX 784121336438878
- Timothy MurphyCorpus Christi, TX 784121851752307
- Minh Nguyen, M.D.Corpus Christi, TX 784121538144530
Common questions
What is James Michael Neff, M.D.'s NPI number?
James Michael Neff, M.D.'s National Provider Identifier (NPI) is 1013992015, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Michael Neff, M.D. located?
The NPPES record lists a practice address at 7121 S Padre Island Dr, Corpus Christi, TX, 78412. Phone: (361) 696-6200. Providers update this record themselves, so call before visiting.
How can I verify James Michael Neff, M.D.'s license?
NPPES lists Texas license number G2795, 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 Michael Neff, M.D. prescribe under Medicare Part D?
In 2024, James Michael Neff, M.D. had 13,189 Medicare Part D claims for 836 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.