NPPES file of Aug 9, 2026

Mary M. Hammel, FNP

Family Nurse Practitioner · Fenton, MO

Mary M. Hammel, FNP is a family nurse practitioner with a practice address in Fenton, Missouri, and NPI 1598067779, issued on Nov 22, 2010. Check the license (Missouri 2010035829, as entered in NPPES) with the Missouri 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
1598067779
Name
Mary M. Hammel
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
2010035829 MO
Self-reported in NPPES; status is on the state search
Practice location
1203 Smizer Mill RD, Fenton, MO 63026
Phone
(636) 717-1350
Enumerated
Nov 22, 2010
Record last updated
Apr 14, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(636) 717-1355
Medicaid ID
1598067779 MO
Medicare enrollment
Enrolled (PECOS I20110223000316); 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 1203 Smizer Mill RD

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

  1. Amanda Breedlove, PNPPediatric Nurse Practitioner1235486952
  2. Laura Covert, D.O.Family Medicine Physician1568727626
  3. Debra Eggers, FNP-BCFamily Nurse Practitioner1285038042
  4. Heidi Gioia, RNC,OGNPObstetrics & Gynecology Nurse Practitioner1427142579
  5. Yulia Lifits-Podorozhansky, M.D.Obstetrics & Gynecology Physician1689607277
  6. Patricia Mills, MDEmergency Medicine Physician1275643553

Verify Mary M. Hammel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2010035829
    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 Missouri license search

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59% fewer Medicare Part D claims than the average family nurse practitioner in 2024

530 Medicare Part D claims for 134 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Mary Hammel530
  2. Specialty average1,305

Most prescribed

  1. Lisinopril42 claims
  2. Atorvastatin Calcium40 claims
  3. Amlodipine Besylate33 claims
  4. Buspirone Hcl23 claims
  5. Metformin Hcl Er20 claims
  6. Duloxetine Hcl17 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. Mercy Clinic East CommunitiesFenton, MO

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

Mary M. Hammel among 5,226 family nurse practitioner records in Missouri

Mary M. Hammel, FNP is one of 5,226 family nurse practitioner records with a practice address in Missouri. 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 2010, is newer than 18% of them.

  • NPI issued2010 · 18% of these records are older, 80% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2010 · median 2018 among the 3,339 with a school on file
  • Record last updated2015 · 44% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 family nurse practitioner records list a practice address in Fenton

They are 31 of the 493 NPPES records with a practice address in Fenton, and 5,226 family nurse practitioner records in Missouri.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Anastasia Averbukh, NPFenton, MO 630261073903134
  2. Denise Blackburn, APRN, FNP-BCFenton, MO 630261043568280
  3. Melanie Boon, APNFenton, MO 630261477925428
  4. Stacie Detmer, FNPFenton, MO 630261235380064
  5. Debra Eggers, FNP-BCFenton, MO 630261285038042
  6. Laura HowardFenton, MO 630261023498334
  7. Susan James, FNPFenton, MO 630261720006844
  8. Lita Lapins, FNPFenton, MO 630261013253699

Common questions

What is Mary M. Hammel, FNP's NPI number?

Mary M. Hammel, FNP's National Provider Identifier (NPI) is 1598067779, issued on Nov 22, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary M. Hammel, FNP located?

The NPPES record lists a practice address at 1203 Smizer Mill RD, Fenton, MO, 63026. Phone: (636) 717-1350. Providers update this record themselves, so call before visiting.

How can I verify Mary M. Hammel, FNP's license?

NPPES lists Missouri license number 2010035829, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Mary M. Hammel, FNP prescribe under Medicare Part D?

In 2024, Mary M. Hammel, FNP had 530 Medicare Part D claims for 134 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.