Walter Bigit Milla, M.D.
Internal Medicine Physician · Chicago, IL
Walter Bigit Milla, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1558658773, issued on Jul 8, 2011. Check the license (Illinois 125.059425, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Walter Bigit Milla
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 125.059425 IL
P9305 TX
ME150208 FL
Self-reported in NPPES; status is on the state search - Practice location
- 836 W Wellington Ave, Chicago, IL 60657
- Phone
- (773) 975-1600
- Enumerated
- Jul 8, 2011
- Record last updated
- Jan 13, 2022
- Medicaid IDs
- 337587501 TX
02570742 NM - Medicare enrollment
- Enrolled (PECOS I20211110002097); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 836 W Wellington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Swapnil Adhav, M.D.Surgery Physician1285942292
- Ahsan AdilAnesthesiology Physician1174463772
Verify Walter Bigit Milla 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 125.059425Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% more Medicare Part D claims than the average internal medicine physician in 2024
6,119 Medicare Part D claims for 597 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 34 claims were for opioids.
Most prescribed
- Atorvastatin Calcium355 claims
- Levothyroxine Sodium269 claims
- Amlodipine Besylate268 claims
- Losartan Potassium263 claims
- Rosuvastatin Calcium215 claims
- Lisinopril169 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: $454.95
23 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.
Bills Medicare through one group practice
- Collier Hma Physician Management LLCNaples, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter Bigit Milla among 7,238 internal medicine physician records in Illinois
Walter Bigit Milla, M.D. 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 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2007 · median 2003 among the 3,580 with a school on file
- Record last updated2022 · 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
- Bruce Blacker, M.D.Chicago, IL 606571982603924
- Brian Boholst, M.D.Chicago, IL 606571235181959
- Edgar Borda, MDChicago, IL 606571891782447
- Harold EulienChicago, IL 606571700877222
- Lisa Greising, M.D.Chicago, IL 606571578523155
- Michael Grendon, M.D.Chicago, IL 606571922007962
- Catherine Kallal, MDChicago, IL 606571407801665
- Alam Khan, M.D.Chicago, IL 606571316946288
Common questions
What is Walter Bigit Milla, M.D.'s NPI number?
Walter Bigit Milla, M.D.'s National Provider Identifier (NPI) is 1558658773, issued on Jul 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Walter Bigit Milla, M.D. located?
The NPPES record lists a practice address at 836 W Wellington Ave, Chicago, IL, 60657. Phone: (773) 975-1600. Providers update this record themselves, so call before visiting.
How can I verify Walter Bigit Milla, M.D.'s license?
NPPES lists Illinois license number 125.059425, 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 Walter Bigit Milla, M.D. prescribe under Medicare Part D?
In 2024, Walter Bigit Milla, M.D. had 6,119 Medicare Part D claims for 597 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.