Mary McKay Dittler, PA-C
Physician Assistant · Newark, DE
Mary McKay Dittler, PA-C is a physician assistant with a practice address in Newark, Delaware, and NPI 1144730342, issued on Oct 3, 2017. Check the license (Delaware C5-0012109, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary McKay Dittler
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C5-0012109 DE
C0006603 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4755 Ogletown Stanton Road, Newark, DE 19718
- Phone
- (302) 623-0188
- Enumerated
- Oct 3, 2017
- Record last updated
- Aug 19, 2025
- Fax
- (302) 733-5640
- Medicare enrollment
- Enrolled (PECOS I20250903001799); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 695 in Delaware → Look up another NPI →
Also registered at 4755 Ogletown Stanton Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Martha Aiken, NPFamily Nurse Practitioner1932350048
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- Leslie Alexander, CRNACertified Registered Nurse Anesthetist1336426857
Verify Mary McKay Dittler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license C5-0012109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Mary McKay Dittler among 695 physician assistant records in Delaware
Mary McKay Dittler, PA-C is one of 695 physician assistant records with a practice address in Delaware. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 42% of them.
- NPI issued2017 · 42% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2019 among the 462 with a school on file
- Record last updated2025 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
319 physician assistant records list a practice address in Newark
They are 319 of the 4,662 NPPES records with a practice address in Newark, and 695 physician assistant records in Delaware.
All 695 in Delaware → Every provider in Newark → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Yolanda Angstadt, PACNewark, DE 197181427036136
- Amanda Canavan, PA-CNewark, DE 197181154307759
- Jeremiah Driscoll, PACNewark, DE 197181598743304
- Brian Duda, PACNewark, DE 197181982682795
- Timothy Felker, PACNewark, DE 197181780662593
- Eric Felker, PACNewark, DE 197181942288568
- Lori Felker, PA CNewark, DE 197181811975808
- David Frieswyk, PA-CNewark, DE 197181023019247
Common questions
What is Mary McKay Dittler, PA-C's NPI number?
Mary McKay Dittler, PA-C's National Provider Identifier (NPI) is 1144730342, issued on Oct 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mary McKay Dittler, PA-C located?
The NPPES record lists a practice address at 4755 Ogletown Stanton Road, Newark, DE, 19718. Phone: (302) 623-0188. Providers update this record themselves, so call before visiting.
How can I verify Mary McKay Dittler, PA-C's license?
NPPES lists Delaware license number C5-0012109, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
What is Mary McKay Dittler, PA-C's MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. 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.