Ari Jacob Wilkenfeld, MD, PHD
Neurology Physician · Worcester, MA
Ari Jacob Wilkenfeld, MD, PHD is a neurology physician with a practice address in Worcester, Massachusetts, and NPI 1922273200, issued on Apr 28, 2008. Check the license (Massachusetts 228943, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ari Jacob Wilkenfeld
- Credential
- MD, PHD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 228943 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-2527
- Enumerated
- Apr 28, 2008
- Record last updated
- Dec 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (774) 442-3687
- Medicare enrollment
- Enrolled (PECOS I20160210000530); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 964 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Ari Jacob Wilkenfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 228943Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average neurology physician in 2024
538 Medicare Part D claims for 66 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Carbidopa-Levodopa78 claims
- Levetiracetam65 claims
- Memantine Hcl63 claims
- Donepezil Hcl34 claims
- Phenytoin Sodium Extended26 claims
- Carbidopa-Levodopa Er23 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): 97 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
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ari Jacob Wilkenfeld among 964 neurology physician records in Massachusetts
Ari Jacob Wilkenfeld, MD, PHD is one of 964 neurology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2005 · median 2006 among the 612 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Massachusetts
There are 964 neurology physician records in Massachusetts.
All 964 in Massachusetts → Every provider in Worcester → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Seema Adhami, M.D.Worcester, MA 016551639169063
- Isabelita Bella, MDWorcester, MA 016551871577924
- Sheldon Benjamin, M.D.Worcester, MA 016551952375248
- David Chad, MDWorcester, MA 016551477537520
- Nancy Fontneau, MDWorcester, MA 016551073597993
- Edward Ginns, M.D. PHD.Worcester, MA 016551588646905
- Wiley Hall, M.D.Worcester, MA 016551275516296
- Lawrence Hayward, M.D.Worcester, MA 016551104807767
Common questions
What is Ari Jacob Wilkenfeld, MD, PHD's NPI number?
Ari Jacob Wilkenfeld, MD, PHD's National Provider Identifier (NPI) is 1922273200, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ari Jacob Wilkenfeld, MD, PHD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-2527. Providers update this record themselves, so call before visiting.
How can I verify Ari Jacob Wilkenfeld, MD, PHD's license?
NPPES lists Massachusetts license number 228943, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ari Jacob Wilkenfeld, MD, PHD prescribe under Medicare Part D?
In 2024, Ari Jacob Wilkenfeld, MD, PHD had 538 Medicare Part D claims for 66 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Ari Jacob Wilkenfeld, MD, PHD's MIPS final score?
The 2023 MIPS final score is 97 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.