NPPES file of Aug 9, 2026

Maria C. Diaz, CRNP

Family Nurse Practitioner · York, PA

Maria C. Diaz, CRNP is a family nurse practitioner with a practice address in York, Pennsylvania, and NPI 1609380484, issued on Nov 30, 2017. Check the license (Pennsylvania SP017952, 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
1609380484
Name
Maria C. Diaz
Credential
CRNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
SP017952 PA
Self-reported in NPPES; status is on the state search
Practice location
2149 S Queen St, York, PA 17403
Phone
(717) 356-4460
Enumerated
Nov 30, 2017
Record last updated
Jul 27, 2026
Fax
(717) 260-3326
Medicare enrollment
Enrolled (PECOS I20180125000657); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2149 S Queen St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Allison Eliason, CRNPFamily Nurse Practitioner1902259153
  2. Carmelle Hilsher, NPFamily Nurse Practitioner1245917848
  3. Michelle Hoadley, D.O.Family Medicine Physician1497175327
  4. Benjamin Judd, PHYSICIAN ASSISTANTMedical Physician Assistant1285132878
  5. Robert Rothermel, D.O.Family Medicine Physician1922022367
  6. Creston Tate, DOFamily Medicine Physician1043280704

Verify Maria C. Diaz 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 SP017952
    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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51% fewer Medicare Part D claims than the average family nurse practitioner in 2024

633 Medicare Part D claims for 310 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Maria Diaz633
  2. Specialty average1,305

Most prescribed

  1. Prednisone71 claims
  2. Haloperidol51 claims
  3. Levothyroxine Sodium51 claims
  4. Propranolol Hcl Er51 claims
  5. Amoxicillin-Clavulanate Potass46 claims
  6. Famotidine33 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.

Bills Medicare through one group practice

  1. Wellspan Medical GroupYork, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maria C. Diaz among 7,209 family nurse practitioner records in Pennsylvania

Maria C. Diaz, CRNP is one of 7,209 family nurse practitioner records with a practice address in Pennsylvania. 76% 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 43% of them.

  • NPI issued2017 · 43% of these records are older, 52% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · median 2018 among the 4,232 with a school on file
  • Record last updated2026 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

212 family nurse practitioner records list a practice address in York

They are 212 of the 4,575 NPPES records with a practice address in York, and 7,209 family nurse practitioner records in Pennsylvania.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kay-Ella Bleecher, CRNPYork, PA 174031598791014
  2. Mary Ann Clark, CRNPYork, PA 174031629006010
  3. Lisa Dewees, CRNPYork, PA 174031487685608
  4. Jennifer Gross, CRNPYork, PA 174031407888183
  5. Tina Grube, CRNPYork, PA 174031750468807
  6. Margaret Harris, CRNPYork, PA 174031063444735
  7. Carol Henderson, M.S.N., C.R.N.P.York, PA 174031033131867
  8. Sarah Hunt, CRNPYork, PA 174031225069180

Common questions

What is Maria C. Diaz, CRNP's NPI number?

Maria C. Diaz, CRNP's National Provider Identifier (NPI) is 1609380484, issued on Nov 30, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Maria C. Diaz, CRNP located?

The NPPES record lists a practice address at 2149 S Queen St, York, PA, 17403. Phone: (717) 356-4460. Providers update this record themselves, so call before visiting.

How can I verify Maria C. Diaz, CRNP's license?

NPPES lists Pennsylvania license number SP017952, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Maria C. Diaz, CRNP prescribe under Medicare Part D?

In 2024, Maria C. Diaz, CRNP had 633 Medicare Part D claims for 310 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.