Terrie Ahn, MD
Allergy & Immunology Physician · Santa Monica, CA
Terrie Ahn, MD is an allergy & immunology physician with a practice address in Santa Monica, California, and NPI 1093166795, issued on Jun 24, 2016. Check the license (California A162214, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Terrie Ahn
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A162214 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1245 16TH St, Santa Monica, CA 90404
- Phone
- (310) 481-4646
- Enumerated
- Jun 24, 2016
- Entity
- Type 1 · individual
Also registered at 1245 16TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Doron Blumenfeld, MDGynecology Physician1619987658
- Burt Charuworn, MDPulmonary Disease Physician1508899808
Verify Terrie Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A162214Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
43% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
425 Medicare Part D claims for 112 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Azelastine Hcl60 claims
- Montelukast Sodium31 claims
- Dupixent Pen27 claims
- Ipratropium Bromide26 claims
- Xolair26 claims
- Epinephrine25 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.
The practice group's Medicare quality score for 2023: 86.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $254.40
6 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
Other allergy & immunology physician records in California
- Edsel Abud, MD, PHDLa Jolla, CA1891257192
- Seema Aceves, M.D., PH.D.San Diego, CA1366511628
- Rhonda Alkatib, M.D.San Diego, CA1417363086
- Mercedes Amado, M.D.San Diego, CA1477510287
- Loula Amin, M.D.Newport Beach, CA1043452782
- A Aminian, M.D.Fresno, CA1508080193
- Ali Amirzadeh, M.D.Sacramento, CA1083748685
- Lorraine Anderson, MDSanta Monica, CA1013209568
- Joshua Ang, DOPasadena, CA1699398016
- Kristi Annecone, FNPSan Jose, CA1316038581
Common questions
What is Terrie Ahn, MD's NPI number?
Terrie Ahn, MD's National Provider Identifier (NPI) is 1093166795, issued on Jun 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Terrie Ahn, MD located?
The NPPES record lists a practice address at 1245 16TH St, Santa Monica, CA, 90404. Phone: (310) 481-4646. Providers update this record themselves, so call before visiting.
How can I verify Terrie Ahn, MD's license?
NPPES lists California license number A162214, 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 Terrie Ahn, MD prescribe under Medicare Part D?
In 2024, Terrie Ahn, MD had 425 Medicare Part D claims for 112 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Terrie Ahn, MD's Medicare quality score?
The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.