Maddisson Ann Haslett, NP
Gerontology Nurse Practitioner · Saint Louis, MO
Maddisson Ann Haslett, NP is a gerontology nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1700524618, issued on May 23, 2022. Check the license (Missouri 2022017958, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maddisson Ann Haslett
- Credential
- NP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License numbers
- 2022017958 MO
209025216 IL
Self-reported in NPPES; status is on the state search - Practice location
- 12639 Old Tesson RD Ste 115, Saint Louis, MO 63128
- Phone
- (314) 849-0311
- Enumerated
- May 23, 2022
- Record last updated
- Aug 19, 2025
- Fax
- (314) 849-4423
- Medicare enrollment
- Enrolled (PECOS I20220603000463); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 229 in Missouri → Look up another NPI →
Also registered at 12639 Old Tesson RD Ste 115
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellen Barton, PAPhysician Assistant1851435903
- Sarah Brinkmann, NPNurse Practitioner1447861836
- Nathan Fisher, D.O.Orthopaedic Hand Surgery Physician1003231853
- Katherine Lally, PHYSICIAN ASSISTANTPhysician Assistant1649239187
- Nicolas Martin, D.P.M.Foot & Ankle Surgery Podiatrist1477668606
- Christopher Palmer, D.O.Orthopaedic Surgery Physician1922362565
Verify Maddisson Ann Haslett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2022017958Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
11 Medicare Part D claims, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Progesterone11 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.
Industry payments in 2024: $19.86
1 payment: food and beverage; the largest payer was Acella Pharmaceuticals, LLC. The 3,903 providers of this specialty with any payment received $742.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Signature Medical Group IncFenton, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maddisson Ann Haslett among 229 gerontology nurse practitioner records in Missouri
Maddisson Ann Haslett, NP is one of 229 gerontology nurse practitioner records with a practice address in Missouri. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 75% of them.
- NPI issued2022 · 75% of these records are older, 15% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2021 · median 2019 among the 167 with a school on file
- Record last updated2025 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Missouri
There are 229 gerontology nurse practitioner records in Missouri.
All 229 in Missouri → Every provider in Saint Louis → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Katie Arter, ANPSaint Louis, MO 631281013791094
- Wesley GordonSaint Louis, MO 631281225408966
- Amy Guan, MS, APNSaint Louis, MO 631281801398813
- Sarah Hartmann, AGNPSaint Louis, MO 631281881108413
- Jenna MatthewsSaint Louis, MO 631281689210924
- Allyson Reeves, ANP-CSaint Louis, MO 631281154102978
- Jessica Sheehan, GNPSaint Louis, MO 631281467654772
- Katie Walsh, MSN, ACNPC-AGSaint Louis, MO 631281851925085
Common questions
What is Maddisson Ann Haslett, NP's NPI number?
Maddisson Ann Haslett, NP's National Provider Identifier (NPI) is 1700524618, issued on May 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Maddisson Ann Haslett, NP located?
The NPPES record lists a practice address at 12639 Old Tesson RD Ste 115, Saint Louis, MO, 63128. Phone: (314) 849-0311. Providers update this record themselves, so call before visiting.
How can I verify Maddisson Ann Haslett, NP's license?
NPPES lists Missouri license number 2022017958, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Maddisson Ann Haslett, NP prescribe under Medicare Part D?
In 2024, Maddisson Ann Haslett, NP had 11 Medicare Part D claims; the average among gerontology nurse practitioner prescribers was 1,369. 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.