NPPES file of Aug 9, 2026

Mladen Vladimirov Grigorov, DO

Internal Medicine Physician · Louisville, KY

Mladen Vladimirov Grigorov, DO is an internal medicine physician with a practice address in Louisville, Kentucky, and NPI 1336609403, issued on Mar 23, 2019. Check the license (Kentucky 05220, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336609403
Name
Mladen Vladimirov Grigorov
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
05220 KY
OS19898 FL
Self-reported in NPPES; status is on the state search
Practice location
530 S Jackson St, Louisville, KY 40202
Phone
(502) 852-5555
Enumerated
Mar 23, 2019
Record last updated
Jul 3, 2023
Medicaid ID
7100682680 KY
Medicare enrollment
Enrolled (PECOS I20230714000660); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 530 S Jackson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Magdy Abaskaron, M.D.Diagnostic Radiology Physician1548264062
  2. Oluwasegun Abe, APRNFamily Nurse Practitioner1316310725
  3. Bianca Adornato, CRNACertified Registered Nurse Anesthetist1336597459
  4. Hiba Al-Dallal, MDAnatomic Pathology & Clinical Pathology Physician1205325610
  5. Mustafa Al-Kawaaz, M.D.Anatomic Pathology & Clinical Pathology Physician1902245038
  6. Houda Alatassi, MDAnatomic Pathology & Clinical Pathology Physician1033266762

Verify Mladen Vladimirov Grigorov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 05220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Kentucky license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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71% fewer Medicare Part D claims than the average internal medicine physician in 2024

917 Medicare Part D claims for 422 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 80 claims were for opioids.

  1. Mladen Grigorov917
  2. Specialty average3,176

Most prescribed

  1. Prednisone42 claims
  2. Amoxicillin-Clavulanate Potass39 claims
  3. Doxycycline Hyclate36 claims
  4. Furosemide34 claims
  5. Oxycodone Hcl33 claims
  6. Atorvastatin Calcium32 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.

The MIPS final score for 2023 (Medicare payment program): 95.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Florida Hospital Physician Group IncTampa, FL
  2. University OF Louisville Physicians IncLouisville, KY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mladen Vladimirov Grigorov among 1,526 internal medicine physician records in Kentucky

Mladen Vladimirov Grigorov, DO is one of 1,526 internal medicine physician records with a practice address in Kentucky. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.

  • NPI issued2019 · 84% of these records are older, 12% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2019 · median 2006 among the 1,025 with a school on file
  • Record last updated2023 · 56% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

457 internal medicine physician records list a practice address in Louisville

They are 457 of the 21,891 NPPES records with a practice address in Louisville, and 1,526 internal medicine physician records in Kentucky.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Britt, M.D.Louisville, KY 402021265424824
  2. Keith Carter, M.D.Louisville, KY 402021134111792
  3. Barbara Casper, MDLouisville, KY 402021124013776
  4. Jason Chesney, MDLouisville, KY 402021407837917
  5. Matthew Fargen, MDLouisville, KY 402021376534719
  6. Haeshik Gorr, MDLouisville, KY 402021821083478
  7. Jennifer Koch, MDLouisville, KY 402021134114788
  8. Rick Lawson, M.D.Louisville, KY 402021689676504

Common questions

What is Mladen Vladimirov Grigorov, DO's NPI number?

Mladen Vladimirov Grigorov, DO's National Provider Identifier (NPI) is 1336609403, issued on Mar 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Mladen Vladimirov Grigorov, DO located?

The NPPES record lists a practice address at 530 S Jackson St, Louisville, KY, 40202. Phone: (502) 852-5555. Providers update this record themselves, so call before visiting.

How can I verify Mladen Vladimirov Grigorov, DO's license?

NPPES lists Kentucky license number 05220, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mladen Vladimirov Grigorov, DO prescribe under Medicare Part D?

In 2024, Mladen Vladimirov Grigorov, DO had 917 Medicare Part D claims for 422 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mladen Vladimirov Grigorov, DO's MIPS final score?

The 2023 MIPS final score is 95.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.