Tammy Lee Ann Vandermolen, F.N.P.
Family Nurse Practitioner · Alton, IL
Tammy Lee Ann Vandermolen, F.N.P. is a family nurse practitioner with a practice address in Alton, Illinois, and NPI 1588853741, issued on Oct 23, 2007. Check the license (Illinois 209019527, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Lee Ann Vandermolen
- Credential
- F.N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209019527 IL
2002016318 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4 Memorial Dr Ste 230, Alton, IL 62002
- Phone
- (618) 463-7777
- Enumerated
- Oct 23, 2007
- Record last updated
- Jul 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20071213000676); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 4 Memorial Dr Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Aldridge, M.D.Surgery Physician1104026707
- Chase Baxter, DOPulmonary Disease Physician1487145264
- Audrey Brennan, FNP-CNurse Practitioner1679231690
- Brandy Byrd, FNPNurse Practitioner1902217540
- Emily Cottrell, FNP-BCNurse Practitioner1295262459
- Kaycee Eyers, FNPFamily Nurse Practitioner1750818522
Verify Tammy Lee Ann Vandermolen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209019527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,836 Medicare Part D claims for 291 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium147 claims
- Levothyroxine Sodium142 claims
- Rosuvastatin Calcium122 claims
- Lisinopril106 claims
- Buspirone Hcl93 claims
- Losartan Potassium91 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: $840.50
30 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.
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
- Physician Groups LCWentzville, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Lee Ann Vandermolen among 7,639 family nurse practitioner records in Illinois
Tammy Lee Ann Vandermolen, F.N.P. is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 5% of them.
- NPI issued2007 · 5% of these records are older, 92% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2018 among the 4,778 with a school on file
- Record last updated2021 · 39% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 family nurse practitioner records list a practice address in Alton
They are 38 of the 1,113 NPPES records with a practice address in Alton, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Alton → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jacqueline Baalman, FNP-BCAlton, IL 620021912236183
- Cody Bilderback, FNPAlton, IL 620021467890657
- Cheryl Bray, FNPAlton, IL 620021225121619
- Lynn Brown, F.N.P.Alton, IL 620021275611618
- Kelley Campbell, RN, FNP-BCAlton, IL 620021245590074
- Tracy Dietz, FNPAlton, IL 620021477941938
- Shelly Hanko, FNPAlton, IL 620021740303627
- Christine Harlan, FNP-BCAlton, IL 620021477882454
Common questions
What is Tammy Lee Ann Vandermolen, F.N.P.'s NPI number?
Tammy Lee Ann Vandermolen, F.N.P.'s National Provider Identifier (NPI) is 1588853741, issued on Oct 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Lee Ann Vandermolen, F.N.P. located?
The NPPES record lists a practice address at 4 Memorial Dr Ste 230, Alton, IL, 62002. Phone: (618) 463-7777. Providers update this record themselves, so call before visiting.
How can I verify Tammy Lee Ann Vandermolen, F.N.P.'s license?
NPPES lists Illinois license number 209019527, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Lee Ann Vandermolen, F.N.P. prescribe under Medicare Part D?
In 2024, Tammy Lee Ann Vandermolen, F.N.P. had 2,836 Medicare Part D claims for 291 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.