NPPES file of Aug 9, 2026

Joann Graziella Lacerva-Hahn, PA

Medical Physician Assistant · New Haven, CT

Joann Graziella Lacerva-Hahn, PA is a medical physician assistant with a practice address in New Haven, Connecticut, and NPI 1801048392, issued on Oct 16, 2008. Check the license (Connecticut 002133, as entered in NPPES) with the Connecticut board that licenses this profession; 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
1801048392
Name
Joann Graziella Lacerva-Hahn
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
002133 CT
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
Oct 16, 2008
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(203) 688-4740
Medicare enrollment
Enrolled (PECOS I20091116000034); accepts Medicare assignment
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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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.

  1. Adam Ackerman, MDHospitalist Physician1497982235
  2. Evelyn Adekolu, M.D.Hospitalist Physician1942595855
  3. Nivedita Agarwal, M.D.Obesity Medicine (Internal Medicine) Physician1790021848
  4. Florence Ahn, PA-CMedical Physician Assistant1649818634
  5. Hisham Al Kukhun, MDHospitalist Physician1497273239
  6. Mhd Yassin Al Mouslmani, M.DHospitalist Physician1326593476

Verify Joann Graziella Lacerva-Hahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 002133
    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
Find the Connecticut license search

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90% fewer Medicare Part D claims than the average medical physician assistant in 2024

118 Medicare Part D claims for 59 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Joann Lacerva-Hahn118
  2. Specialty average1,148

Most prescribed

  1. Metoprolol Succinate16 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. 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).

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.

Other medical physician assistant records in Connecticut

  1. Shalima AbdallaWaterbury, CT1083237861
  2. Elaine Accorsini, P.A.Norwalk, CT1891876876
  3. Stacy Adil, PA-CNew Haven, CT1093943193
  4. Holly Adinolfi, PA-CNew Haven, CT1871070219
  5. Eleanor Adzamli-Wefum, PA-CHartford, CT1023820404
  6. Claribel Agosto, RPA-CBridgeport, CT1538410865
  7. Amelia Ahern, PA-CHartford, CT1316561251
  8. Kamruz Ahmed, PA-CStamford, CT1063975381
  9. Florence Ahn, PA-CNew Haven, CT1649818634
  10. Elif AjrediniWaterbury, CT1891331591

Common questions

What is Joann Graziella Lacerva-Hahn, PA's NPI number?

Joann Graziella Lacerva-Hahn, PA's National Provider Identifier (NPI) is 1801048392, issued on Oct 16, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Joann Graziella Lacerva-Hahn, PA 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 Joann Graziella Lacerva-Hahn, PA's license?

NPPES lists Connecticut license number 002133, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Joann Graziella Lacerva-Hahn, PA prescribe under Medicare Part D?

In 2024, Joann Graziella Lacerva-Hahn, PA had 118 Medicare Part D claims for 59 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.