NPPES file of Aug 9, 2026

Joseph William Mikolajewski, DMD

General Practice Dentistry · Philadelphia, PA

Joseph William Mikolajewski, DMD is a general practice dentistry with a practice address in Philadelphia, Pennsylvania, and NPI 1639345358, issued on May 2, 2008. Check the license (Pennsylvania DSO35392, as entered in NPPES) with the Pennsylvania 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
1639345358
Name
Joseph William Mikolajewski
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DSO35392 PA
Self-reported in NPPES; status is on the state search
Practice location
7258 Castor Ave, Philadelphia, PA 19149
Phone
(215) 728-1144
Enumerated
May 2, 2008
Record last updated
May 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Joseph William Mikolajewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license DSO35392
    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 Pennsylvania license search

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2.8 times the Medicare Part D claims of the average general practice dentistry in 2024

233 Medicare Part D claims for 113 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Joseph Mikolajewski233
  2. Specialty average83

Most prescribed

  1. Amoxicillin73 claims
  2. Chlorhexidine Gluconate62 claims
  3. Ibuprofen46 claims
  4. Cephalexin11 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.

Industry payments in 2024: $200.00

1 payment: education; the largest payer was Straumann USA LLC. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Mikolajewski$200.00
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Joseph William Mikolajewski among 4,612 general practice dentistry records in Pennsylvania

Joseph William Mikolajewski, DMD is one of 4,612 general practice dentistry records with a practice address in Pennsylvania. 63% 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 61% of them.

  • NPI issued2008 · 61% of these records are older, 34% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2008 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

551 general practice dentistry records list a practice address in Philadelphia

They are 551 of the 42,849 NPPES records with a practice address in Philadelphia, and 4,612 general practice dentistry records in Pennsylvania.

The 8 general practice dentistry records with the nearest ZIP codes

  1. George Becker, DMDPhiladelphia, PA 191491558588103
  2. Bhalchandra Bhatt, DMDPhiladelphia, PA 191491972804839
  3. Alla Fishman, DDSPhiladelphia, PA 191491215124326
  4. Boris Fridman, D.M.DPhiladelphia, PA 191491982757928
  5. Aditi Jindal, DMDPhiladelphia, PA 191491093027138
  6. Bongsang Ko, D.M.D.Philadelphia, PA 191491699086686
  7. Ira Liss, DMDPhiladelphia, PA 191491396894333
  8. Grant McSurdy, DMDPhiladelphia, PA 191491225304355

Common questions

What is Joseph William Mikolajewski, DMD's NPI number?

Joseph William Mikolajewski, DMD's National Provider Identifier (NPI) is 1639345358, issued on May 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Joseph William Mikolajewski, DMD located?

The NPPES record lists a practice address at 7258 Castor Ave, Philadelphia, PA, 19149. Phone: (215) 728-1144. Providers update this record themselves, so call before visiting.

How can I verify Joseph William Mikolajewski, DMD's license?

NPPES lists Pennsylvania license number DSO35392, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Joseph William Mikolajewski, DMD prescribe under Medicare Part D?

In 2024, Joseph William Mikolajewski, DMD had 233 Medicare Part D claims for 113 beneficiaries; the average among general practice dentistry prescribers was 83. 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.