Rebecca E. Anastos-Wallen, MD
Internal Medicine Physician · Chicago, IL
Rebecca E. Anastos-Wallen, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1720576820, issued on Apr 25, 2018. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Rebecca E. Anastos-Wallen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD473831 PA
Self-reported in NPPES; status is on the state search - Practice location
- 30 W Monroe St Ste 1200, Chicago, IL 60603
- Phone
- (312) 733-9730
- Enumerated
- Apr 25, 2018
- Record last updated
- Nov 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (773) 866-8014
- Medicare enrollment
- Enrolled (PECOS I20210811002775); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 30 W Monroe St Ste 1200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Alfredo, PHARMDPharmacist1841164761
- Elizabeth Jager, FNP-CFamily Nurse Practitioner1477095826
- Guadalupe Maya-Veskovic, LCSWClinical Social Worker1669986915
- Stephanie PellegrinoPharmacist1710352323
Verify Rebecca E. Anastos-Wallen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average internal medicine physician in 2024
4,684 Medicare Part D claims for 206 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium403 claims
- Amlodipine Besylate261 claims
- Furosemide162 claims
- Metoprolol Succinate148 claims
- Albuterol Sulfate Hfa146 claims
- Ozempic122 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.
Bills Medicare through one group practice
- Osh - PA Physicians Group, PCPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca E. Anastos-Wallen among 7,238 internal medicine physician records in Illinois
Rebecca E. Anastos-Wallen, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 66% of them.
- NPI issued2018 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2003 among the 3,580 with a school on file
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mary Allison Arwady, MDChicago, IL 606031548421597
- Hyun Cho-Steinberg, MDChicago, IL 606031518075001
- Elyse Esrig, M.D.Chicago, IL 606031356388201
- Kenneth Hayes, M.D.Chicago, IL 606031700812872
- Jeffrey Kopin, M.D.Chicago, IL 606031093754970
- Charles Lo, MDChicago, IL 606031578635173
- Marilyn Pearson, MDChicago, IL 606031144267626
- Susan Sheneman, M.D.Chicago, IL 606031083647978
Common questions
What is Rebecca E. Anastos-Wallen, MD's NPI number?
Rebecca E. Anastos-Wallen, MD's National Provider Identifier (NPI) is 1720576820, issued on Apr 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca E. Anastos-Wallen, MD located?
The NPPES record lists a practice address at 30 W Monroe St Ste 1200, Chicago, IL, 60603. Phone: (312) 733-9730. Providers update this record themselves, so call before visiting.
How can I verify Rebecca E. Anastos-Wallen, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rebecca E. Anastos-Wallen, MD prescribe under Medicare Part D?
In 2024, Rebecca E. Anastos-Wallen, MD had 4,684 Medicare Part D claims for 206 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.