Florence Jiyoung Ahn, PA-C
Medical Physician Assistant · New Haven, CT
Florence Jiyoung Ahn, PA-C is a medical physician assistant with a practice address in New Haven, Connecticut, and NPI 1649818634, issued on Dec 20, 2019. Check the license (Connecticut 4713, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Florence Jiyoung Ahn
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- 4713 CT
0010-09478 NC
Self-reported in NPPES; status is on the state search - Practice location
- 20 York Street, CB-2041, New Haven, CT 06510
- Phone
- (203) 688-4748
- Enumerated
- Dec 20, 2019
- Record last updated
- Feb 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (203) 688-4740
- Medicare enrollment
- Enrolled (PECOS I20200221002425); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,138 in Connecticut → Look up another NPI →
Also registered at 20 York Street, CB-2041
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Florence Jiyoung Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 4713Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average medical physician assistant in 2024
181 Medicare Part D claims for 77 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium16 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 MIPS final score for 2023 (Medicare payment program): 93.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northeast Medical Group IncNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Florence Jiyoung Ahn among 1,138 medical physician assistant records in Connecticut
Florence Jiyoung Ahn, PA-C is one of 1,138 medical physician assistant records with a practice address in Connecticut. 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 2019, is newer than 69% of them.
- NPI issued2019 · 69% of these records are older, 25% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2019 · median 2015 among the 732 with a school on file
- Record last updated2020 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
248 medical physician assistant records list a practice address in New Haven
They are 248 of the 9,793 NPPES records with a practice address in New Haven, and 1,138 medical physician assistant records in Connecticut.
All 1,138 in Connecticut → Every provider in New Haven → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Daniel Cervonka, PA-C, MPAS, CASNew Haven, CT 065101932125036
- Ryan Donovan, PA-CNew Haven, CT 065101881650364
- Douglas Eldred, PA-CNew Haven, CT 065101033153093
- Katherine Flaherty, PA-CNew Haven, CT 065101356363899
- Tracy Gambardella, PA-CNew Haven, CT 065101760513014
- Christine Haley, PANew Haven, CT 065101902913445
- Tonia McGowan, PANew Haven, CT 065101447391842
- Shilpa Mistry, PANew Haven, CT 065101407951122
Common questions
What is Florence Jiyoung Ahn, PA-C's NPI number?
Florence Jiyoung Ahn, PA-C's National Provider Identifier (NPI) is 1649818634, issued on Dec 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Florence Jiyoung Ahn, PA-C located?
The NPPES record lists a practice address at 20 York Street, CB-2041, New Haven, CT, 06510. Phone: (203) 688-4748. Providers update this record themselves, so call before visiting.
How can I verify Florence Jiyoung Ahn, PA-C's license?
NPPES lists Connecticut license number 4713, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Florence Jiyoung Ahn, PA-C prescribe under Medicare Part D?
In 2024, Florence Jiyoung Ahn, PA-C had 181 Medicare Part D claims for 77 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Florence Jiyoung Ahn, PA-C's MIPS final score?
The 2023 MIPS final score is 93.3 of 100. 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.