Arnulfo Izquierdo, D.O.
Family Medicine Physician · Harlingen, TX
Arnulfo Izquierdo, D.O. is a family medicine physician with a practice address in Harlingen, Texas, and NPI 1588617989, issued on May 18, 2006. Check the license (Texas L2951, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Arnulfo Izquierdo
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- L2951 TX
Self-reported in NPPES; status is on the state search - Practice location
- 24750 Stuart Place RD, Harlingen, TX 78552
- Phone
- (956) 412-1883
- Enumerated
- May 18, 2006
- Record last updated
- Oct 31, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (956) 428-1227
- Medicaid ID
- 146752401 TX
- Medicare enrollment
- Enrolled (PECOS I20050428000584); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Verify Arnulfo Izquierdo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L2951Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average family medicine physician in 2024
9,433 Medicare Part D claims for 619 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 104 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium544 claims
- Atorvastatin Calcium492 claims
- Metformin Hcl482 claims
- Losartan Potassium427 claims
- Levothyroxine Sodium415 claims
- Amlodipine Besylate366 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.
Arnulfo Izquierdo among 11,119 family medicine physician records in Texas
Arnulfo Izquierdo, 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 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
- Graduated1998 · median 2004 among the 7,095 with a school on file
- Record last updated2011 · 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).
68 family medicine physician records list a practice address in Harlingen
They are 68 of the 2,419 NPPES records with a practice address in Harlingen, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Harlingen → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Maria Dill, M.D.Harlingen, TX 785521578594263
- Rosalio PadillaHarlingen, TX 785521730641986
- Marcelino Pon, M.D.Harlingen, TX 785521598795254
- Jonathan Yamaguchi, M.D.Harlingen, TX 785521689687428
- Irvin Del Angel, MDHarlingen, TX 785501376006999
- Qurrat-Ul-Ain Elahi, MDHarlingen, TX 785501497319495
- Redi Ferizaj, MDHarlingen, TX 785501568950350
- Drew Fidler, DOHarlingen, TX 785501750203162
Common questions
What is Arnulfo Izquierdo, D.O.'s NPI number?
Arnulfo Izquierdo, D.O.'s National Provider Identifier (NPI) is 1588617989, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arnulfo Izquierdo, D.O. located?
The NPPES record lists a practice address at 24750 Stuart Place RD, Harlingen, TX, 78552. Phone: (956) 412-1883. Providers update this record themselves, so call before visiting.
How can I verify Arnulfo Izquierdo, D.O.'s license?
NPPES lists Texas license number L2951, 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 Arnulfo Izquierdo, D.O. prescribe under Medicare Part D?
In 2024, Arnulfo Izquierdo, D.O. had 9,433 Medicare Part D claims for 619 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.