Asit B. Shil, MD
Geriatric Medicine (Family Medicine) Physician · Fontana, CA
Asit B. Shil, MD is a geriatric medicine (family medicine) physician with a practice address in Fontana, California, and NPI 1629119995, issued on Feb 9, 2007. Check the license (California A96621, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Asit B. Shil
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- A96621 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17284 Slover Ave, Fontana, CA 92337
- Phone
- (888) 750-0036
- Enumerated
- Feb 9, 2007
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090930000605); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 243 in California → Look up another NPI →
Also registered at 17284 Slover Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Amarin, LCSWClinical Social Worker1588309306
- Wasil Aqil, D.OFamily Medicine Physician1659535318
- Asal AzizoddinOncology Pharmacist1871976704
- Alexander Cao, PHARM.D.Pharmacotherapy Pharmacist1891786869
- Sylvain Casimir, PHARM.D.Oncology Pharmacist1376820407
- Christine Castro, PHARM.D., BCPSPharmacotherapy Pharmacist1801238332
Verify Asit B. Shil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96621Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
3,227 Medicare Part D claims for 513 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 64 claims were for opioids.
Most prescribed
- Atorvastatin Calcium173 claims
- Lidocaine97 claims
- Albuterol Sulfate Hfa93 claims
- Furosemide83 claims
- Prednisone83 claims
- Levothyroxine Sodium73 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Asit B. Shil among 243 geriatric medicine (family medicine) physician records in California
Asit B. Shil, MD is one of 243 geriatric medicine (family medicine) physician records with a practice address in California. 76% 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 47% of them.
- NPI issued2007 · 47% of these records are older, 35% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated1992 · median 2004 among the 111 with a school on file
- Record last updated2021 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in California
There are 243 geriatric medicine (family medicine) physician records in California.
All 243 in California → Every provider in Fontana → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Robyn HeidenreichFontana, CA 923371932468477
- Kent Ahn, MDFontana, CA 923351083762017
- Israel Coutin, MDFontana, CA 923351790852663
- Juanito Garlitos, MDFontana, CA 923351780751644
- Karisa Jahn, D.O.Fontana, CA 923351346531027
- Kamal Kejriwal, MDFontana, CA 923351336210392
- Helen Lee, MDFontana, CA 923351336210244
- Norman Ragaza, MDFontana, CA 923351508925249
Common questions
What is Asit B. Shil, MD's NPI number?
Asit B. Shil, MD's National Provider Identifier (NPI) is 1629119995, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Asit B. Shil, MD located?
The NPPES record lists a practice address at 17284 Slover Ave, Fontana, CA, 92337. Phone: (888) 750-0036. Providers update this record themselves, so call before visiting.
How can I verify Asit B. Shil, MD's license?
NPPES lists California license number A96621, 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 Asit B. Shil, MD prescribe under Medicare Part D?
In 2024, Asit B. Shil, MD had 3,227 Medicare Part D claims for 513 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.