Ali E. Jafferi, M.D.
Internal Medicine Physician · Lancaster, CA
Ali E. Jafferi, M.D. is an internal medicine physician with a practice address in Lancaster, California, and NPI 1912042235, issued on Feb 21, 2007. Check the license (California A54961, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ali E. Jafferi
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A54961 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44900 60TH St W, Lancaster, CA 93536
- Phone
- (661) 948-8581
- Enumerated
- Feb 21, 2007
- Record last updated
- Apr 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (661) 945-8474
- Medicare enrollment
- Enrolled (PECOS I20050930000537); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 44900 60TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Breen, R. N., N.P.Nurse Practitioner1144346594
- Yesenia Castellon, N.P.Family Nurse Practitioner1184927741
- Lessette Cetto, RNPPediatric Nurse Practitioner1134476799
- Canagaretnam Chandradas, M.D.Internal Medicine Physician1093840936
- Dorothy Copeland, R.N., N.P.Nurse Practitioner1831228931
- Henry Elwood, R.N., C.R.N.A.Certified Registered Nurse Anesthetist1710022926
Verify Ali E. Jafferi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,722 Medicare Part D claims for 148 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. 18 claims were for opioids.
Most prescribed
- Amlodipine Besylate154 claims
- Benazepril Hcl129 claims
- Metformin Hcl128 claims
- Pravastatin Sodium80 claims
- Atorvastatin Calcium69 claims
- Hydrochlorothiazide60 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
- County OF Los AngelesLancaster, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ali E. Jafferi among 17,696 internal medicine physician records in California
Ali E. Jafferi, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1986 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
55 internal medicine physician records list a practice address in Lancaster
They are 55 of the 4,273 NPPES records with a practice address in Lancaster, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Lancaster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Canagaretnam Chandradas, M.D.Lancaster, CA 935361093840936
- Junaid Fitter, M.D.Lancaster, CA 935361255466835
- Ethan HsuLancaster, CA 935361982270401
- Kartikey Mehta, M.D.Lancaster, CA 935361184750473
- Jose Pascual, M.D.Lancaster, CA 935361306981683
- Marvin Ross, M.D.Lancaster, CA 935361659408227
- Sangar Selva, MDLancaster, CA 935361114957925
- Violeta Vallejo-Sinavsky, M.D.Lancaster, CA 935361013042357
Common questions
What is Ali E. Jafferi, M.D.'s NPI number?
Ali E. Jafferi, M.D.'s National Provider Identifier (NPI) is 1912042235, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ali E. Jafferi, M.D. located?
The NPPES record lists a practice address at 44900 60TH St W, Lancaster, CA, 93536. Phone: (661) 948-8581. Providers update this record themselves, so call before visiting.
How can I verify Ali E. Jafferi, M.D.'s license?
NPPES lists California license number A54961, 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 Ali E. Jafferi, M.D. prescribe under Medicare Part D?
In 2024, Ali E. Jafferi, M.D. had 1,722 Medicare Part D claims for 148 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.