NPPES file of Aug 9, 2026

Donald A. Nicklas, M.D.

Anatomic Pathology & Clinical Pathology Physician · Audubon, PA

Donald A. Nicklas, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Audubon, Pennsylvania, and NPI 1952442055, issued on Feb 9, 2007. Check the license (Pennsylvania MD015583E, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1952442055
Name
Donald A. Nicklas
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
MD015583E PA
Self-reported in NPPES; status is on the state search
Practice location
2865 Ringneck RD, Audubon, PA 19403
Phone
(610) 539-0549
Enumerated
Feb 9, 2007
Record last updated
Jul 8, 2007 (not updated in 19 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 Donald A. Nicklas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD015583E
    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
Open the Pennsylvania license search

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62% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024

73 Medicare Part D claims, against an average of 192 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Donald Nicklas73
  2. Specialty average192

Most prescribed

  1. Ezetimibe12 claims
  2. Fenofibrate12 claims
  3. Jardiance11 claims
  4. Xarelto11 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.

Donald A. Nicklas among 716 anatomic pathology & clinical pathology physician records in Pennsylvania

Donald A. Nicklas, M.D. is one of 716 anatomic pathology & clinical pathology physician records with a practice address in Pennsylvania. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 46% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2007 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Pennsylvania

There are 716 anatomic pathology & clinical pathology physician records in Pennsylvania.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Michelle HeaynEast Norriton, PA 194031447766910
  2. John Lininger, MDEast Norriton, PA 194031720042823
  3. Patricia Perosio, MDEast Norriton, PA 194031770547358
  4. Philip Klenn, MDEast Norriton, PA 194011710170865
  5. Michael Nagar, M.D.King Of Prussia, PA 194061588996847
  6. Hua-Fang LinWest Chester, PA 193821043743115
  7. Mehmet Goral, M.D.West Chester, PA 193801154485233
  8. James Heald, M.D.West Chester, PA 193801619031739

Common questions

What is Donald A. Nicklas, M.D.'s NPI number?

Donald A. Nicklas, M.D.'s National Provider Identifier (NPI) is 1952442055, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Donald A. Nicklas, M.D. located?

The NPPES record lists a practice address at 2865 Ringneck RD, Audubon, PA, 19403. Phone: (610) 539-0549. Providers update this record themselves, so call before visiting.

How can I verify Donald A. Nicklas, M.D.'s license?

NPPES lists Pennsylvania license number MD015583E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Donald A. Nicklas, M.D. prescribe under Medicare Part D?

In 2024, Donald A. Nicklas, M.D. had 73 Medicare Part D claims; the average among anatomic pathology & clinical pathology physician prescribers was 192. 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.