Oscar-Alfonso Chavez Hernandez, M.D.
Family Medicine Physician · Porterville, CA
Oscar-Alfonso Chavez Hernandez, M.D. is a family medicine physician with a practice address in Porterville, California, and NPI 1598790479, issued on Jul 11, 2006. Check the license (California G072101, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Oscar-Alfonso Chavez Hernandez
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G072101 CA
Self-reported in NPPES; status is on the state search - Practice location
- 139 E Putnam Ave, Porterville, CA 93257
- Phone
- (559) 784-2176
- Enumerated
- Jul 11, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (559) 784-2176
- Medicaid ID
- 00G072101 CA
- Medicare enrollment
- Enrolled (PECOS I20100211000283); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Oscar-Alfonso Chavez Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G072101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average family medicine physician in 2024
15,970 Medicare Part D claims for 413 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 1,738 claims were for opioids.
Most prescribed
- Atorvastatin Calcium640 claims
- Hydrocodone-Acetaminophen640 claims
- Amlodipine Besylate479 claims
- Montelukast Sodium456 claims
- Gabapentin430 claims
- Amitriptyline Hcl392 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.
The MIPS final score for 2023 (Medicare payment program): 37.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $960.53
13 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Oscar-Alfonso Chavez Hernandez among 17,133 family medicine physician records in California
Oscar-Alfonso Chavez Hernandez, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1990 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 family medicine physician records list a practice address in Porterville
They are 31 of the 795 NPPES records with a practice address in Porterville, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Porterville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Maria Emilia Cunanan, M.D.Porterville, CA 932571073570834
- Francis Cunanan, M.D.Porterville, CA 932571457309262
- Martin Devine, MDPorterville, CA 932571134180425
- Martin Falappino, D.O.Porterville, CA 932571205861309
- Reynaldo Garcia, MDPorterville, CA 932571821049149
- Christopher Gillespie, M.D.Porterville, CA 932571881645265
- William Goodin, M.D.Porterville, CA 932571578586814
- Jolly Jacinto, MDPorterville, CA 932571063495182
Common questions
What is Oscar-Alfonso Chavez Hernandez, M.D.'s NPI number?
Oscar-Alfonso Chavez Hernandez, M.D.'s National Provider Identifier (NPI) is 1598790479, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Oscar-Alfonso Chavez Hernandez, M.D. located?
The NPPES record lists a practice address at 139 E Putnam Ave, Porterville, CA, 93257. Phone: (559) 784-2176. Providers update this record themselves, so call before visiting.
How can I verify Oscar-Alfonso Chavez Hernandez, M.D.'s license?
NPPES lists California license number G072101, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Oscar-Alfonso Chavez Hernandez, M.D. prescribe under Medicare Part D?
In 2024, Oscar-Alfonso Chavez Hernandez, M.D. had 15,970 Medicare Part D claims for 413 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Oscar-Alfonso Chavez Hernandez, M.D.'s MIPS final score?
The 2023 MIPS final score is 37.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.