Joanna Denis, M.D.
Internal Medicine Physician · Parsippany, NJ
Joanna Denis, M.D. is an internal medicine physician with a practice address in Parsippany, New Jersey, and NPI 1528129475, issued on Dec 13, 2006. Check the license (New Jersey 25MA06251100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joanna Denis
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA06251100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 415 Parsippany RD, Parsippany, NJ 07054
- Phone
- (973) 884-0666
- Enumerated
- Dec 13, 2006
- Entity
- Type 1 · individual
Also registered at 415 Parsippany RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary WuStudent in an Organized Health Care Education/Training Program1528588811
- Malgorzata Ziolo, M.D.Internal Medicine Physician1528129483
Verify Joanna Denis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA06251100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
48% more Medicare Part D claims than the average internal medicine physician in 2024
4,120 Medicare Part D claims for 481 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 35 claims were for opioids.
Most prescribed
- Levothyroxine Sodium220 claims
- Omeprazole192 claims
- Atorvastatin Calcium179 claims
- Pravastatin Sodium139 claims
- Metoprolol Succinate128 claims
- Abrysvo121 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 Medicare quality score for 2023: 21.2 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).
Industry payments in 2024: $145.88
9 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 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.
22 internal medicine physician records list a Parsippany practice address
They are 22 of the 840 NPPES records with a Parsippany practice address, and 5,156 internal medicine physician records in New Jersey.
All 22 in Parsippany → All 5,156 in New Jersey → Every provider in Parsippany →
Other internal medicine physician records in New Jersey
- Joseph Aaron, MD, FACPShort Hills, NJ1861584633
- Sirike Aasmaa, DOMontville, NJ1861549925
- Holly Abate Bersalona, M.D.Sea Girt, NJ1669500492
- Kaniz Zehra Abbas, MDTrenton, NJ1598253858
- Shahida Abbas, MDOld Bridge, NJ1023104098
- Shahed AbbasiNewark, NJ1477810752
- Samih Abbassi, MDWest Orange, NJ1750380358
- Somaya Abboud, MDWest Orange, NJ1326089004
- Hilal Abboushi, MDBloomfield, NJ1548378029
- Majdi Abdalla, M.D.Atlantic City, NJ1922230135
Common questions
What is Joanna Denis, M.D.'s NPI number?
Joanna Denis, M.D.'s National Provider Identifier (NPI) is 1528129475, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Denis, M.D. located?
The NPPES record lists a practice address at 415 Parsippany RD, Parsippany, NJ, 07054. Phone: (973) 884-0666. Providers update this record themselves, so call before visiting.
How can I verify Joanna Denis, M.D.'s license?
NPPES lists New Jersey license number 25MA06251100, as entered by the provider. 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 Joanna Denis, M.D. prescribe under Medicare Part D?
In 2024, Joanna Denis, M.D. had 4,120 Medicare Part D claims for 481 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Joanna Denis, M.D.'s Medicare quality score?
The 2023 MIPS final score is 21.2 of 100. 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.
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.