Undine Vallejos, DO
Internal Medicine Physician · Glenview, IL
Undine Vallejos, DO is an internal medicine physician with a practice address in Glenview, Illinois, and NPI 1912160557, issued on Jul 3, 2008. Check the license (Illinois 036-121274, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Undine Vallejos
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036-121274 IL
036121274 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Pfingsten RD, Glenview, IL 60026
- Phone
- (847) 657-5800
- Enumerated
- Jul 3, 2008
- Record last updated
- Oct 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2100 Pfingsten RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Albaugh, PHD, APRN, CUCNSClinical Nurse Specialist1801967229
- Diane AlkatoutHospitalist Physician1447838206
- Mary Alvarado, PTPhysical Therapist1417279092
- Ana Thereza Barion, MDNeurology Physician1083889232
- Ermilo Barrera, MDSurgery Physician1447327192
Verify Undine Vallejos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-121274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average internal medicine physician in 2024
970 Medicare Part D claims for 101 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Atorvastatin Calcium77 claims
- Lisinopril42 claims
- Gabapentin38 claims
- Metformin Hcl38 claims
- Losartan Potassium28 claims
- Levothyroxine Sodium22 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: $96.23
5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Undine Vallejos among 7,238 internal medicine physician records in Illinois
Undine Vallejos, DO 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 2008, is newer than 45% of them.
- NPI issued2008 · 45% of these records are older, 51% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2016 · 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).
57 internal medicine physician records list a practice address in Glenview
They are 57 of the 2,545 NPPES records with a practice address in Glenview, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Glenview → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gabriel Berlin, M.D.Glenview, IL 600261831296474
- Michael Caughron, M.D.Glenview, IL 600261164534137
- Greg Denenberg, MDGlenview, IL 600261235185299
- Thomas Ficho, M.D., PH.D.Glenview, IL 600261336141746
- Roger Hecker, MDGlenview, IL 600261083630925
- Videsha Kulkarni, MDGlenview, IL 600261215988126
- Evan Lipkis, MDGlenview, IL 600261770560757
- Sheree Lipkis, MDGlenview, IL 600261548248438
Common questions
What is Undine Vallejos, DO's NPI number?
Undine Vallejos, DO's National Provider Identifier (NPI) is 1912160557, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Undine Vallejos, DO located?
The NPPES record lists a practice address at 2100 Pfingsten RD, Glenview, IL, 60026. Phone: (847) 657-5800. Providers update this record themselves, so call before visiting.
How can I verify Undine Vallejos, DO's license?
NPPES lists Illinois license number 036-121274, as entered by the provider. 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 Undine Vallejos, DO prescribe under Medicare Part D?
In 2024, Undine Vallejos, DO had 970 Medicare Part D claims for 101 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.