Mark A. Durback, MD
Rheumatology Physician · Easton, PA
Mark A. Durback, MD is a rheumatology physician with a practice address in Easton, Pennsylvania, and NPI 1689615601, issued on Jun 9, 2006. Check the license (Pennsylvania MD027186E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark A. Durback
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- MD027186E PA
MA51321 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 21 Corporate Drive, Easton, PA 18045
- Phone
- (610) 250-9605
- Enumerated
- Jun 9, 2006
- Record last updated
- Feb 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (610) 250-3902
- Medicaid IDs
- 001122106 PA
2463105 NJ - Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 413 in Pennsylvania → Look up another NPI →
Verify Mark A. Durback in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD027186ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average rheumatology physician in 2024
48 Medicare Part D claims for 32 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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.
Mark A. Durback among 413 rheumatology physician records in Pennsylvania
Mark A. Durback, MD is one of 413 rheumatology physician records with a practice address in Pennsylvania. 80% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 53% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Pennsylvania
There are 413 rheumatology physician records in Pennsylvania.
All 413 in Pennsylvania → Every provider in Easton → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Farheen JaffariEaston, PA 180451932549516
- Oliver Kurucz, MDEaston, PA 180451821159203
- Hana Masood, M.D., M.B.A.Easton, PA 180451952708349
- Jolanta Zelaznicka, MDEaston, PA 180451720047442
- Kristen SalavaBethlehem, PA 180181952806838
- Nicole Chiappetta, DOBethlehem, PA 180171275525503
- Ellen FieldBethlehem, PA 180171407823297
- Rajesh KuppurajuBethlehem, PA 180151700383999
Common questions
What is Mark A. Durback, MD's NPI number?
Mark A. Durback, MD's National Provider Identifier (NPI) is 1689615601, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Durback, MD located?
The NPPES record lists a practice address at 21 Corporate Drive, Easton, PA, 18045. Phone: (610) 250-9605. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Durback, MD's license?
NPPES lists Pennsylvania license number MD027186E, 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 Mark A. Durback, MD prescribe under Medicare Part D?
In 2024, Mark A. Durback, MD had 48 Medicare Part D claims for 32 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.