NPPES file of Aug 9, 2026

Nancy S. Giaimo, FNP

Family Nurse Practitioner · Lake St Louis, MO

Nancy S. Giaimo, FNP is a family nurse practitioner with a practice address in Lake St Louis, Missouri, and NPI 1699719971, issued on Jun 16, 2006. Check the license (Missouri 124244, 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
1699719971
Name
Nancy S. Giaimo
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
124244 MO
Self-reported in NPPES; status is on the state search
Practice location
6261 Ronald Reagan Dr Ste B18, Lake St Louis, MO 63367
Phone
(636) 561-3021
Enumerated
Jun 16, 2006
Record last updated
Feb 11, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050111000639); 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 Nancy S. Giaimo 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 124244
    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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4.3 times the Medicare Part D claims of the average family nurse practitioner in 2024

5,590 Medicare Part D claims for 638 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Nancy Giaimo5,590
  2. Specialty average1,305

Most prescribed

  1. Lisinopril300 claims
  2. Levothyroxine Sodium284 claims
  3. Atorvastatin Calcium236 claims
  4. Amlodipine Besylate182 claims
  5. Losartan Potassium153 claims
  6. Alprazolam145 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: $777.45

43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nancy Giaimo$777.45
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Aging Well Health Care, LLCSaint Louis, MO
  2. Physician Groups LCSaint Louis, MO

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

Nancy S. Giaimo among 5,226 family nurse practitioner records in Missouri

Nancy S. Giaimo, 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 90% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2003 · median 2018 among the 3,339 with a school on file
  • Record last updated2021 · 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).

14 family nurse practitioner records list a practice address in Lake St Louis

They are 14 of the 264 NPPES records with a practice address in Lake St Louis, and 5,226 family nurse practitioner records in Missouri.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Katherine Benenati, AGACNPLake St Louis, MO 633671194418988
  2. Rachel Closser, FNP-CLake St Louis, MO 633671205411535
  3. Yunhee Cruse, CNP, FNP-BCLake St Louis, MO 633671104500867
  4. Amanda Garth, NP-CLake St Louis, MO 633671710401641
  5. Molly Lombardo, NP-CLake St Louis, MO 633671083136378
  6. Adina Lumley Rey, FNPLake St Louis, MO 633671336558014
  7. Julie Miller, FNPLake St Louis, MO 633671326323767
  8. Melissa ReboreLake St Louis, MO 633671588339188

Common questions

What is Nancy S. Giaimo, FNP's NPI number?

Nancy S. Giaimo, FNP's National Provider Identifier (NPI) is 1699719971, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nancy S. Giaimo, FNP located?

The NPPES record lists a practice address at 6261 Ronald Reagan Dr Ste B18, Lake St Louis, MO, 63367. Phone: (636) 561-3021. Providers update this record themselves, so call before visiting.

How can I verify Nancy S. Giaimo, FNP's license?

NPPES lists Missouri license number 124244, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Nancy S. Giaimo, FNP prescribe under Medicare Part D?

In 2024, Nancy S. Giaimo, FNP had 5,590 Medicare Part D claims for 638 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.