Joanne Ahn, M.D.
Emergency Medicine Physician · Belleville, NJ
Joanne Ahn, M.D. is an emergency medicine physician with a practice address in Belleville, New Jersey, and NPI 1629463856, issued on Apr 3, 2015. Check the license on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joanne Ahn
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- Practice location
- 1 Clara Maass Dr, Belleville, NJ 07109
- Phone
- (973) 450-2000
- Enumerated
- Apr 3, 2015
- Entity
- Type 1 · individual
Also registered at 1 Clara Maass Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lellas Alhallak, PA-CMedical Physician Assistant1083399836
- Lauren Andreola, PAPhysician Assistant1982172227
Verify Joanne Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
80% fewer Medicare Part D claims than the average emergency medicine physician in 2024
70 Medicare Part D claims for 55 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $641.50
24 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 12,165 providers of this specialty with any payment received $1,340.71 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.
One hospital or facility affiliation
- Rwjbh Emergency Medicine Associates, LLCBelleville, NJ
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
13 emergency medicine physician records list a Belleville practice address
They are 13 of the 561 NPPES records with a Belleville practice address, and 1,657 emergency medicine physician records in New Jersey.
All 13 in Belleville → All 1,657 in New Jersey → Every provider in Belleville →
Other emergency medicine physician records in New Jersey
- Tareef Abbasi, MDClifton, NJ1427139617
- Mohammad Abboud, MDHackensack, NJ1881187359
- Moheb Abdelmalek, MDPerth Amboy, NJ1699776179
- Ibrahim Abdullah, M.D.Willingboro, NJ1649464140
- Kate Aberger, MDPaterson, NJ1821266719
- Vanessa Aboagye, DOPhillipsburg, NJ1750028437
- Adefris Adal, M.D.Jersey City, NJ1669728622
- Shivani AdhyaruMorristown, NJ1447754445
- David Adinaro, MDPaterson, NJ1114039849
- Kristen Adorno, MDCamden, NJ1689153678
Common questions
What is Joanne Ahn, M.D.'s NPI number?
Joanne Ahn, M.D.'s National Provider Identifier (NPI) is 1629463856, issued on Apr 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joanne Ahn, M.D. located?
The NPPES record lists a practice address at 1 Clara Maass Dr, Belleville, NJ, 07109. Phone: (973) 450-2000. Providers update this record themselves, so call before visiting.
How can I verify Joanne Ahn, M.D.'s license?
Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joanne Ahn, M.D. prescribe under Medicare Part D?
In 2024, Joanne Ahn, M.D. had 70 Medicare Part D claims for 55 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.