Penka K. Zamfirova, M.D.
Internal Medicine Physician · Chicago, IL
Penka K. Zamfirova, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1275616914, issued on Oct 24, 2006. Check the license (Illinois 036115776, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Penka K. Zamfirova
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036115776 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7035 W Grand Ave, Chicago, IL 60707
- Phone
- (773) 385-8031
- Enumerated
- Oct 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (773) 385-8035
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 7035 W Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ioanna Vateva, M.D.Pediatrics Physician1598839201
Verify Penka K. Zamfirova 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 036115776Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average internal medicine physician in 2024
750 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Amlodipine Besylate50 claims
- Omeprazole48 claims
- Atorvastatin Calcium41 claims
- Gabapentin37 claims
- Hydrochlorothiazide32 claims
- Losartan Potassium30 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: $970.20
39 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Penka K. Zamfirova among 7,238 internal medicine physician records in Illinois
Penka K. Zamfirova, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2007 · 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
- Amal Alkhalafawi, MDElmwood Park, IL 607071770561789
- Diana Chicos, M.D.Chicago, IL 607071932132230
- Beatriz Huertas Rivera, M.D.Chicago, IL 607071508841982
- Carolyn Kalina, M.D.Chicago, IL 607071386664845
- Aruna Kandula, M.D.Chicago, IL 607071205818085
- Judy Law, M.D.Chicago, IL 607071225042229
- Timothy Lyman, MDElmwood Park, IL 607071659302263
- Pankaj Patel, M.D.Chicago, IL 607071871503151
Common questions
What is Penka K. Zamfirova, M.D.'s NPI number?
Penka K. Zamfirova, M.D.'s National Provider Identifier (NPI) is 1275616914, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Penka K. Zamfirova, M.D. located?
The NPPES record lists a practice address at 7035 W Grand Ave, Chicago, IL, 60707. Phone: (773) 385-8031. Providers update this record themselves, so call before visiting.
How can I verify Penka K. Zamfirova, M.D.'s license?
NPPES lists Illinois license number 036115776, 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 Penka K. Zamfirova, M.D. prescribe under Medicare Part D?
In 2024, Penka K. Zamfirova, M.D. had 750 Medicare Part D claims for 61 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.