Gian P. Hernandez, DO
Family Medicine Physician · Lancaster, CA
Gian P. Hernandez, DO is a family medicine physician with a practice address in Lancaster, California, and NPI 1740290535, issued on Aug 8, 2006. Check the license (California 20A8740, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gian P. Hernandez
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A8740 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44750 60TH St W, Lancaster, CA 93536
- Phone
- (661) 729-2000
- Enumerated
- Aug 8, 2006
- Record last updated
- Nov 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080723000557); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 44750 60TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer AdamoClinical Psychologist1518290154
- Fernando Alessandri, PHDClinical Psychologist1952824286
- Howayda Aly, PSYDClinical Psychologist1932229515
- Jeanne Mireille AtanganaStudent in an Organized Health Care Education/Training Program1710625389
- Anna Benitez, MSWStudent in an Organized Health Care Education/Training Program1780246439
- Gurpreet Bhasin, DDSDentist1386827541
Verify Gian P. Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A8740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
98 Medicare Part D claims for 16 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium19 claims
- Amlodipine Besylate12 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 one group practice
- SC Medical, Inc.Santa Clarita, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gian P. Hernandez among 17,133 family medicine physician records in California
Gian P. Hernandez, DO 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
- Graduated1999 · median 2005 among the 10,652 with a school on file
- Record last updated2016 · 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).
45 family medicine physician records list a practice address in Lancaster
They are 45 of the 4,273 NPPES records with a practice address in Lancaster, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Lancaster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Tahir Khan, M.D.Lancaster, CA 935361366577231
- Cheridah Lignier, PACQuartz Hill, CA 935361659571024
- Adoracion Thompson, M.D.Quartz Hill, CA 935361245574094
- Ryan Gorji, M.D.Lancaster, CA 935351619358272
- An Chih Hsieh, M.D., MPHLancaster, CA 935351356877377
- Miriam Nazmy, MDLancaster, CA 935351013274539
- Geoffrey Tsoi, DOLancaster, CA 935351497100606
- Hoda Haydari Ahwazi, MDLancaster, CA 935341952980336
Common questions
What is Gian P. Hernandez, DO's NPI number?
Gian P. Hernandez, DO's National Provider Identifier (NPI) is 1740290535, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gian P. Hernandez, DO located?
The NPPES record lists a practice address at 44750 60TH St W, Lancaster, CA, 93536. Phone: (661) 729-2000. Providers update this record themselves, so call before visiting.
How can I verify Gian P. Hernandez, DO's license?
NPPES lists California license number 20A8740, 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 Gian P. Hernandez, DO prescribe under Medicare Part D?
In 2024, Gian P. Hernandez, DO had 98 Medicare Part D claims for 16 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.