Terrie Susie Ahn, MD
Allergy & Immunology Physician · Santa Monica, CA
Terrie Susie 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 Susie 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
- Record last updated
- Aug 4, 2022
- Fax
- (310) 899-7599
- Medicare enrollment
- Enrolled (PECOS I20220627003368); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
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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- Tristan Bickman, MDObstetrics & Gynecology Physician1245253210
- Doron Blumenfeld, MDGynecology Physician1619987658
- Burt Charuworn, MDPulmonary Disease Physician1508899808
Verify Terrie Susie 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 MIPS final score for 2023 (Medicare payment program): 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; by number, the most common kind was 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).
Terrie Susie Ahn among 444 allergy & immunology physician records in California
Terrie Susie Ahn, MD is one of 444 allergy & immunology 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 2016, is newer than 87% of them.
- NPI issued2016 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 281 with a school on file
- Record last updated2022 · 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 207K00000X 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 Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in Santa Monica → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Lorraine Anderson, MDSanta Monica, CA 904041013209568
- Sanny Chan, M.D., PH.D.Santa Monica, CA 904041043449788
- Aaron Chin, MDSanta Monica, CA 904041487116638
- Bernard Geller, M.D., PH.D.Santa Monica, CA 904041427132968
- Gary Gibbon, M.D.Santa Monica, CA 904041568484293
- Stacy Eui-Jung Lee, M.D.Santa Monica, CA 904041932158722
- Samantha Swain, M.D.Santa Monica, CA 904041871938951
- Alan Szeftel, M.D.Santa Monica, CA 904041962435412
Common questions
What is Terrie Susie Ahn, MD's NPI number?
Terrie Susie 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 Susie 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 Susie 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 Susie Ahn, MD prescribe under Medicare Part D?
In 2024, Terrie Susie 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 Susie Ahn, MD's MIPS final 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), 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.