NPPES file of Aug 9, 2026

Sharon Greiner, MSN, CNM ,FNP-BC

Advanced Practice Midwife · Merrillville, IN

Sharon Greiner, MSN, CNM ,FNP-BC is an advanced practice midwife with a practice address in Merrillville, Indiana, and NPI 1477218444, issued on Nov 4, 2021. Check the license (Indiana 09000477A, as entered in NPPES) with the Indiana 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
1477218444
Name
Sharon Greiner
Credential
MSN, CNM ,FNP-BC
Primary taxonomy
Advanced Practice Midwife 367A00000X
License numbers
09000477A IN
71012214A IN
Self-reported in NPPES; status is on the state search
Practice location
6901 Broadway, Merrillville, IN 46410
Phone
(219) 763-8112
Enumerated
Nov 4, 2021
Record last updated
Sep 12, 2024
Medicare enrollment
Enrolled (PECOS I20220223001700); 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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Verify Sharon Greiner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 09000477A
    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 Indiana license search

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72% more Medicare Part D claims than the average advanced practice midwife in 2024

124 Medicare Part D claims for 83 beneficiaries, against an average of 72 among the 2,776 providers of this specialty who prescribed in Part D.

  1. Sharon Greiner124
  2. Specialty average72

Most prescribed

  1. Amoxicillin-Clavulanate Potass13 claims
  2. Cephalexin13 claims
  3. Prednisone11 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 2 group practices

  1. Midwest Express Care 4 LLCHammond, IN
  2. Northshore Health Centers IncMerrillville, IN

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

Sharon Greiner among 245 advanced practice midwife records in Indiana

Sharon Greiner, MSN, CNM ,FNP-BC is one of 245 advanced practice midwife records with a practice address in Indiana. 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 2021, is newer than 72% of them.

  • NPI issued2021 · 72% of these records are older, 24% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2021 · median 2019 among the 106 with a school on file
  • Record last updated2024 · 31% 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 Indiana 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 Indiana

There are 245 advanced practice midwife records in Indiana.

The 8 advanced practice midwife records with the nearest ZIP codes

  1. Colleen Sahy, CNMMerrillville, IN 464101144220278
  2. Paula Brandt, CERTIFIED NURSE MIDWLake Station, IN 464051699280925
  3. Debra Equihua, CNMGary, IN 464041396819355
  4. Shannon Markle, CNMValparaiso, IN 463851295077782
  5. Valerie Allmon, APRN, CNMValparaiso, IN 463831194441584
  6. Elizabeth Loudenber, CNMValparaiso, IN 463831417259045
  7. Brittany Burgy, APRN, CNMPortage, IN 463681225718968
  8. Gabrielle Chandler, DNP,CNMPortage, IN 463681437909330

Common questions

What is Sharon Greiner, MSN, CNM ,FNP-BC's NPI number?

Sharon Greiner, MSN, CNM ,FNP-BC's National Provider Identifier (NPI) is 1477218444, issued on Nov 4, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sharon Greiner, MSN, CNM ,FNP-BC located?

The NPPES record lists a practice address at 6901 Broadway, Merrillville, IN, 46410. Phone: (219) 763-8112. Providers update this record themselves, so call before visiting.

How can I verify Sharon Greiner, MSN, CNM ,FNP-BC's license?

NPPES lists Indiana license number 09000477A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Sharon Greiner, MSN, CNM ,FNP-BC prescribe under Medicare Part D?

In 2024, Sharon Greiner, MSN, CNM ,FNP-BC had 124 Medicare Part D claims for 83 beneficiaries; the average among advanced practice midwife prescribers was 72. 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.