NPPES file of Aug 9, 2026

Erin E. Koser, CNM

Advanced Practice Midwife · York, PA

Erin E. Koser, CNM is an advanced practice midwife with a practice address in York, Pennsylvania, and NPI 1629506597, issued on May 23, 2017. Check the license (Pennsylvania MW010449, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629506597
Name
Erin E. Koser
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License number
MW010449 PA
Self-reported in NPPES; status is on the state search
Practice location
1232 Greensprings Dr, York, PA 17402
Phone
(717) 845-9639
Enumerated
May 23, 2017
Record last updated
Jun 5, 2024
Fax
(717) 715-1310
Medicare enrollment
Enrolled (PECOS I20180215001066); 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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8 nearest advanced practice midwife records → All 464 in Pennsylvania → Look up another NPI →

Also registered at 1232 Greensprings Dr

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

  1. Abigail BarleyObstetrics & Gynecology Physician1497486849
  2. Anthony Corbo, DOObstetrics & Gynecology Physician1841781069
  3. Clifford Hudson, M.D.Internal Medicine Physician1861472938
  4. Kodjo Karikari, MDObstetrics & Gynecology Physician1801337084

Verify Erin E. Koser 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 MW010449    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Pinnacle Health Medical ServicesYork, PA

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

Erin E. Koser among 464 advanced practice midwife records in Pennsylvania

Erin E. Koser, CNM is one of 464 advanced practice midwife records with a practice address in Pennsylvania. 58% 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 62% of them.

  • NPI issued2017 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2016 · median 2016 among the 188 with a school on file
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367A00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Advanced Practice Midwife providers in Pennsylvania

There are 464 advanced practice midwife records in Pennsylvania.

All 464 in Pennsylvania → Every provider in York → Advanced Practice Midwife nationwide →

The 8 advanced practice midwife records with the nearest ZIP codes

  1. Janice Bollinger, CNMYork, PA 174031548296049
  2. Myra Deluca, CNMYork, PA 174031184964330
  3. Rebecca Domsic, CNMYork, PA 174031205220274
  4. Alyx Fuhrman, CNMYork, PA 174031245092014
  5. Jennifer Glorioso, CNM, WHNPYork, PA 174031326698861
  6. Tiffany Jackson, CNMYork, PA 174031922299452
  7. Jasmine Johnson, MSN, CNM, C-EFMYork, PA 174031275143463
  8. Fonta Knight, CNMYork, PA 174031639777444

Common questions

What is Erin E. Koser, CNM's NPI number?

Erin E. Koser, CNM's National Provider Identifier (NPI) is 1629506597, issued on May 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Erin E. Koser, CNM located?

The NPPES record lists a practice address at 1232 Greensprings Dr, York, PA, 17402. Phone: (717) 845-9639. Providers update this record themselves, so call before visiting.

How can I verify Erin E. Koser, CNM's license?

NPPES lists Pennsylvania license number MW010449, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.