John Whytosek, D.M.D.
Periodontics · Bryn Mawr, PA
John Whytosek, D.M.D. is a periodontics with a practice address in Bryn Mawr, Pennsylvania, and NPI 1285729269, issued on Oct 4, 2006. Check the license (Pennsylvania DS-030593-L, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Whytosek
- Credential
- D.M.D.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- DS-030593-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 29 Morris Ave, Bryn Mawr, PA 19010
- Phone
- (610) 527-6061
- Enumerated
- Oct 4, 2006
- Record last updated
- Oct 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (610) 527-5857
- Entity
- Type 1 · individual
8 nearest periodontics records → All 249 in Pennsylvania → Look up another NPI →
Also registered at 29 Morris Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joshua Evensky, D.D.S., M.D.SPeriodontics1285078857
Verify John Whytosek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license DS-030593-LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average periodontics in 2024
523 Medicare Part D claims for 338 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Amoxicillin262 claims
- Azithromycin92 claims
- Amoxicillin-Clavulanate Potass36 claims
- Hydrocodone-Acetaminophen33 claims
- Doxycycline Hyclate21 claims
- Cephalexin19 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: $2,199.45
24 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 2,966 providers of this specialty with any payment received $1,338.41 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.
John Whytosek among 249 periodontics records in Pennsylvania
John Whytosek, D.M.D. is one of 249 periodontics records with a practice address in Pennsylvania. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in Pennsylvania
There are 249 periodontics records in Pennsylvania.
All 249 in Pennsylvania → Every provider in Bryn Mawr → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Susan Cutler, DMDBryn Mawr, PA 190101306051669
- Joshua Evensky, D.D.S., M.D.SBryn Mawr, PA 190101285078857
- Jonathan Friedman, DMDBryn Mawr, PA 190101376617456
- Andrew Halbert, D.D.S.Bryn Mawr, PA 190101851447056
- Ranah Kim, D.M.D.Bryn Mawr, PA 190101902094261
- Jeffrey Pearlman-Storch, D.M.D.Bryn Mawr, PA 190101538366612
- Thomas Seibert, D.M.D.Bryn Mawr, PA 190101801017017
- Maki Tsou, D.M.D.Bryn Mawr, PA 190101740448869
Common questions
What is John Whytosek, D.M.D.'s NPI number?
John Whytosek, D.M.D.'s National Provider Identifier (NPI) is 1285729269, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Whytosek, D.M.D. located?
The NPPES record lists a practice address at 29 Morris Ave, Bryn Mawr, PA, 19010. Phone: (610) 527-6061. Providers update this record themselves, so call before visiting.
How can I verify John Whytosek, D.M.D.'s license?
NPPES lists Pennsylvania license number DS-030593-L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does John Whytosek, D.M.D. prescribe under Medicare Part D?
In 2024, John Whytosek, D.M.D. had 523 Medicare Part D claims for 338 beneficiaries; the average among periodontics prescribers was 277. 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.