Tammy Laas, APN
Family Nurse Practitioner · Elmhurst, IL
Tammy Laas, APN is a family nurse practitioner with a practice address in Elmhurst, Illinois, and NPI 1720331473, issued on Oct 18, 2012. Check the license (Illinois 209009785, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Laas
- Credential
- APN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209009785 IL
Self-reported in NPPES; status is on the state search - Practice location
- 360 W Butterfield RD Ste 140, Elmhurst, IL 60126
- Phone
- (630) 574-0460
- Enumerated
- Oct 18, 2012
- Record last updated
- Mar 14, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 360 W Butterfield RD Ste 140
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Knysak, MDAllergy & Immunology Physician1609876101
- Zachary RubinAllergy & Immunology Physician1750775185
Verify Tammy Laas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209009785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family nurse practitioner in 2024
147 Medicare Part D claims for 44 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Arnuity Ellipta19 claims
- Montelukast Sodium18 claims
- Breo Ellipta17 claims
- Albuterol Sulfate Hfa15 claims
- Fluticasone Propionate15 claims
- Azelastine Hcl14 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: $1,024.18
50 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Tammy Laas among 7,639 family nurse practitioner records in Illinois
Tammy Laas, APN 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 2012, is newer than 14% of them.
- NPI issued2012 · 14% of these records are older, 83% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 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).
32 family nurse practitioner records list a practice address in Elmhurst
They are 32 of the 1,540 NPPES records with a practice address in Elmhurst, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Elmhurst → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Lisa Biancalana-Marsh, DNP, APN, FNP-BCElmhurst, IL 601261396134623
- Mary Bradley, APRNElmhurst, IL 601261568494318
- Renata Ciszek, APNElmhurst, IL 601261447567268
- Edgardo Galvez, NP-CElmhurst, IL 601261952718355
- Marion Kolar, MSN, RN, FNP-BCElmhurst, IL 601261184997843
- Christine Koutsky, NPElmhurst, IL 601261841626694
- Lyana Kubilius, APNElmhurst, IL 601261518164433
- Jacqueline MyersElmhurst, IL 601261730518952
Common questions
What is Tammy Laas, APN's NPI number?
Tammy Laas, APN's National Provider Identifier (NPI) is 1720331473, issued on Oct 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Laas, APN located?
The NPPES record lists a practice address at 360 W Butterfield RD Ste 140, Elmhurst, IL, 60126. Phone: (630) 574-0460. Providers update this record themselves, so call before visiting.
How can I verify Tammy Laas, APN's license?
NPPES lists Illinois license number 209009785, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Laas, APN prescribe under Medicare Part D?
In 2024, Tammy Laas, APN had 147 Medicare Part D claims for 44 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.