NPPES file of Aug 9, 2026

Trisha Sharma, M.D.

Allergy & Immunology (Internal Medicine) Physician · Irvine, CA

Trisha Sharma, M.D. is an allergy & immunology (internal medicine) physician with a practice address in Irvine, California, and NPI 1811315781, issued on Mar 28, 2014. Check the license (California A138802, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811315781
Name
Trisha Sharma
Credential
M.D.
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License number
A138802 CA
Self-reported in NPPES; status is on the state search
Practice location
6 Willard, Irvine, CA 92604
Phone
(833) 574-2272
Enumerated
Mar 28, 2014
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191025000264); accepts Medicare assignment
Medical or professional school
Rutgers New Jersey Medical School, 2014
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest allergy & immunology (internal medicine) physician records → All 81 in California → Look up another NPI →

Also registered at 6 Willard

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karen BuiPharmacist1124566013
  2. Jason Castillo, M.D.MOHS-Micrographic Surgery Physician1497098644
  3. Jun Ho Chae, M.D.Family Medicine Physician1003811969
  4. Anne Chandsawang, D.O.Family Medicine Physician1679756118
  5. Carren ChangPharmacist1891234696
  6. Annie ChauPharmacist1245778265

Verify Trisha Sharma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138802    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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25% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024

594 Medicare Part D claims for 138 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Trisha Sharma594
  2. Specialty average789

Most prescribed

  1. Ipratropium Bromide79 claims
  2. Montelukast Sodium69 claims
  3. Azelastine Hcl67 claims
  4. Spiriva Respimat53 claims
  5. Wixela Inhub47 claims
  6. Advair Hfa34 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

  1. Southern California Permanente Medical GroupAnaheim, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Trisha Sharma among 81 allergy & immunology (internal medicine) physician records in California

Trisha Sharma, M.D. is one of 81 allergy & immunology (internal medicine) physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 69% of them.

  • NPI issued2014 · 69% of these records are older, 26% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2014 · median 2010 among the 46 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology (Internal Medicine) Physician providers in California

There are 81 allergy & immunology (internal medicine) physician records in California.

All 81 in California → Every provider in Irvine → Allergy & Immunology (Internal Medicine) Physician nationwide →

The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes

  1. Tyler Basen, M.D.Mission Viejo, CA 926911184069692
  2. Bruce Nelson, M.D.Mission Viejo, CA 926911649269614
  3. Jeremy Kaslow, M.D.Santa Ana, CA 927051144305574
  4. Christelle Miot, MDLoma Linda, CA 923541487150736
  5. Joseph Nguyen, MDOrange, CA 928681225217425
  6. Monica TsaiOrange, CA 928681598176497
  7. Christopher Foster, MDSan Diego, CA 921061588710644
  8. Purvi Mehra, M.D.San Diego, CA 921031336280031

Common questions

What is Trisha Sharma, M.D.'s NPI number?

Trisha Sharma, M.D.'s National Provider Identifier (NPI) is 1811315781, issued on Mar 28, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Trisha Sharma, M.D. located?

The NPPES record lists a practice address at 6 Willard, Irvine, CA, 92604. Phone: (833) 574-2272. Providers update this record themselves, so call before visiting.

How can I verify Trisha Sharma, M.D.'s license?

NPPES lists California license number A138802, 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 Trisha Sharma, M.D. prescribe under Medicare Part D?

In 2024, Trisha Sharma, M.D. had 594 Medicare Part D claims for 138 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.