NPPES file of Aug 9, 2026

Greta Louise Gill, CNM

Advanced Practice Midwife · Tucson, AZ

Greta Louise Gill, CNM is an advanced practice midwife with a practice address in Tucson, Arizona, and NPI 1508920323, issued on Dec 20, 2006. Check the license (Arizona RN105341, as entered in NPPES) with the Arizona 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
1508920323
Name
Greta Louise Gill
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License numbers
RN105341 AZ
574742 CA
Self-reported in NPPES; status is on the state search
Practice location
839 W Congress St, Tucson, AZ 85745
Phone
(520) 670-3870
Enumerated
Dec 20, 2006
Record last updated
Mar 11, 2025
Fax
(520) 670-3896
Medicare enrollment
Enrolled (PECOS I20080226000380); 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 306 in Arizona → Look up another NPI →

Also registered at 839 W Congress St

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

  1. Denise Ahearn, MDPediatrics Physician1194719047
  2. Melinda Arias, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1720688369
  3. Andrew Arthur, MDPediatrics Physician1962484048
  4. Vienna Aslanian, LCSWClinical Social Worker1437743523
  5. James Austin, CNMAdvanced Practice Midwife1205398682
  6. Michelle Baas, CNMAdvanced Practice Midwife1164155487

Verify Greta Louise Gill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license RN105341    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 Arizona 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. EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ

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

Greta Louise Gill among 306 advanced practice midwife records in Arizona

Greta Louise Gill, CNM is one of 306 advanced practice midwife records with a practice address in Arizona. 56% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 75% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2001 · median 2017 among the 125 with a school on file
  • Record last updated2025 · 41% 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 Arizona 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 Arizona

There are 306 advanced practice midwife records in Arizona.

All 306 in Arizona → Every provider in Tucson → Advanced Practice Midwife nationwide →

The 8 advanced practice midwife records with the nearest ZIP codes

  1. James Austin, CNMTucson, AZ 857451205398682
  2. Kerry Griffin, CNMTucson, AZ 857451063648186
  3. Lodz Joseph-Lemon, CNMTucson, AZ 857451467852913
  4. Jodi Kaszubski Heli, CNMTucson, AZ 857451508160003
  5. Barbara Kremer, CNMTucson, AZ 857451699867358
  6. Phoebe Lithgow, CNM, WHNP-BCTucson, AZ 857451255862066
  7. Shelley McGrew, CNMTucson, AZ 857451902218258
  8. Patricia Nast, CNMTucson, AZ 857451770956435

Common questions

What is Greta Louise Gill, CNM's NPI number?

Greta Louise Gill, CNM's National Provider Identifier (NPI) is 1508920323, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Greta Louise Gill, CNM located?

The NPPES record lists a practice address at 839 W Congress St, Tucson, AZ, 85745. Phone: (520) 670-3870. Providers update this record themselves, so call before visiting.

How can I verify Greta Louise Gill, CNM's license?

NPPES lists Arizona license number RN105341, as entered by the provider. Search the Arizona 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.