Tammy Vandermolen, F.N.P.
NPI 1588853741 · Family Nurse Practitioner · Alton, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Vandermolen, F.N.P. is a Family Nurse Practitioner provider in Alton, IL (NPI 1588853741).
Provider details
- NPI number
- 1588853741
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- F.N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 2002016318 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
477 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 187 | $105 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 108 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $106 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 35 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $74 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 147 | 51 |
| Levothyroxine Sodium | 142 | 47 |
| Rosuvastatin Calcium | 122 | 43 |
| Lisinopril | 106 | 37 |
| Buspirone Hcl | 93 | 30 |
| Losartan Potassium | 91 | 30 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$841 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- Po Box Ah510 West Main StreetSteelville, MO 65565-0568Phone: (573) 775-4600Fax: (573) 775-4602
Registry dates
- Enumerated
- 2007-10-23
- Last updated
- 2021-07-14
- Certified
- 2021-07-14
Frequently asked questions
- What is Tammy Vandermolen's NPI number?
- Tammy Vandermolen's National Provider Identifier (NPI) is 1588853741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Vandermolen's specialty?
- Tammy Vandermolen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Vandermolen located?
- Tammy Vandermolen's practice location on file with NPPES is 4 Memorial Dr Ste 230, Alton, IL 62002-6704.
- What is Tammy Vandermolen's phone number?
- The practice phone number listed in the NPPES registry for Tammy Vandermolen is (618) 463-7777.
- Does Tammy Vandermolen accept Medicare?
- Tammy Vandermolen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Vandermolen's NPI active?
- Yes — Tammy Vandermolen's NPI (1588853741) is active in the NPPES registry as of the last update on 2021-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.