Ralph Frederick Cox, M.D.
Family Medicine Physician · Dallas, TX
Ralph Frederick Cox, M.D. is a family medicine physician with a practice address in Dallas, Texas, and NPI 1922071703, issued on Feb 10, 2006. Check the license (Texas G3253, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ralph Frederick Cox
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G3253 TX
Self-reported in NPPES; status is on the state search - Practice location
- 14651 Dallas Pkwy Ste 811, Dallas, TX 75254
- Phone
- (877) 868-4827
- Enumerated
- Feb 10, 2006
- Record last updated
- Feb 4, 2026
- Medicaid IDs
- 162636804 TX
162636803 TX
162636805 TX - Medicare enrollment
- Enrolled (PECOS I20031106000171); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 14651 Dallas Pkwy Ste 811
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ona Nwosu, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1194764159
Verify Ralph Frederick Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G3253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 68% of the cost of the top drugs
2,165 Medicare Part D claims for 527 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 82 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Buprenorphine-Naloxone111 claims
- Shingrix105 claims
- Atorvastatin Calcium83 claims
- Amlodipine Besylate63 claims
- Abrysvo61 claims
- Lisinopril56 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.
Industry payments in 2024: $155.40
8 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ralph Frederick Cox among 11,119 family medicine physician records in Texas
Ralph Frederick Cox, M.D. 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1982 · median 2004 among the 7,095 with a school on file
- Record last updated2026 · 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).
509 family medicine physician records list a practice address in Dallas
They are 509 of the 36,304 NPPES records with a practice address in Dallas, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Dallas → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Temitope Akinola, MDDallas, TX 752541093337172
- Maria Cuadros, MDDallas, TX 752541427051028
- Judith Erickson, MDDallas, TX 752541821029307
- Michael Jenks, M.D.Dallas, TX 752541538158365
- Martin McElya, DODallas, TX 752541154329746
- Lawrence McNally, M.D.Dallas, TX 752541154322006
- Thien-An Nguyen, MDDallas, TX 752541669663654
- Rebecca Romack, M.D.Dallas, TX 752541619234770
Common questions
What is Ralph Frederick Cox, M.D.'s NPI number?
Ralph Frederick Cox, M.D.'s National Provider Identifier (NPI) is 1922071703, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Frederick Cox, M.D. located?
The NPPES record lists a practice address at 14651 Dallas Pkwy Ste 811, Dallas, TX, 75254. Phone: (877) 868-4827. Providers update this record themselves, so call before visiting.
How can I verify Ralph Frederick Cox, M.D.'s license?
NPPES lists Texas license number G3253, 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 Ralph Frederick Cox, M.D. prescribe under Medicare Part D?
In 2024, Ralph Frederick Cox, M.D. had 2,165 Medicare Part D claims for 527 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.