Shashidar B. Acharya, M.D.
Geriatric Medicine (Internal Medicine) Physician · Orange, CA
Shashidar B. Acharya, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Orange, California, and NPI 1770685521, issued on Sep 2, 2006. Check the license (California A-036182, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shashidar B. Acharya
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A-036182 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1240 E Chapman Ave, Orange, CA 92866
- Phone
- (714) 771-2800
- Enumerated
- Sep 2, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 771-3200
- Medicaid ID
- 00A361820 CA
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 1240 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Neal Patel, D.O.Family Medicine Physician1730543919
- Pravin Sharma, M.D.Internal Medicine Physician1134224611
Verify Shashidar B. Acharya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A-036182Check 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 geriatric medicine (internal medicine) physician in 2024
143 Medicare Part D claims for 59 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium18 claims
- Rosuvastatin Calcium14 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.
Shashidar B. Acharya among 532 geriatric medicine (internal medicine) physician records in California
Shashidar B. Acharya, M.D. is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X 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 (Internal Medicine) Physician providers in California
There are 532 geriatric medicine (internal medicine) physician records in California.
All 532 in California → Every provider in Orange → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Robert Buster, M.D.Orange, CA 928681841343076
- Mary Harward, M.D.Orange, CA 928681407835275
- Kassandra King, DOOrange, CA 928681215498936
- K.a. Manisha PereraOrange, CA 928681952783862
- Angela Tan, MDOrange, CA 928681437358173
- Kenneth Tram, MDOrange, CA 928681700875911
- Xaviour Walker, M.D.Orange, CA 928681104151042
- Giselle Seron, MDGarden Grove, CA 928441790858900
Common questions
What is Shashidar B. Acharya, M.D.'s NPI number?
Shashidar B. Acharya, M.D.'s National Provider Identifier (NPI) is 1770685521, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shashidar B. Acharya, M.D. located?
The NPPES record lists a practice address at 1240 E Chapman Ave, Orange, CA, 92866. Phone: (714) 771-2800. Providers update this record themselves, so call before visiting.
How can I verify Shashidar B. Acharya, M.D.'s license?
NPPES lists California license number A-036182, 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 Shashidar B. Acharya, M.D. prescribe under Medicare Part D?
In 2024, Shashidar B. Acharya, M.D. had 143 Medicare Part D claims for 59 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.