NPPES file of Aug 9, 2026

Tamara Isakova, MD

Nephrology Physician · Chicago, IL

Tamara Isakova, MD is a nephrology physician with a practice address in Chicago, Illinois, and NPI 1902879778, issued on Feb 10, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1902879778
Name
Tamara Isakova
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
107174 FL
Self-reported in NPPES; status is on the state search
Practice location
633 N Saint Clair St, Chicago, IL 60611
Phone
(312) 503-6921
Enumerated
Feb 10, 2006
Record last updated
Sep 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(312) 503-5656
Medicare enrollment
Enrolled (PECOS I20140327000084); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 633 N Saint Clair St

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

  1. Rupal Mehta, M.DNephrology Physician1093963738
  2. Alexandra Saali, MDSleep Medicine (Psychiatry & Neurology) Physician1972253086

Verify Tamara Isakova in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

90% fewer Medicare Part D claims than the average nephrology physician in 2024

151 Medicare Part D claims for 37 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Tamara Isakova151
  2. Specialty average1,465

Most prescribed

  1. Calcitriol23 claims
  2. Jardiance21 claims
  3. Amlodipine Besylate15 claims
  4. Losartan Potassium12 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): 94.1 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 score82.6
  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 one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

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

Tamara Isakova among 572 nephrology physician records in Illinois

Tamara Isakova, MD is one of 572 nephrology physician records with a practice address in Illinois. 87% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2003 · median 2002 among the 433 with a school on file
  • Record last updated2013 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Illinois

There are 572 nephrology physician records in Illinois.

The 8 nephrology physician records with the nearest ZIP codes

  1. Shubhada Ahya, MDChicago, IL 606111336138767
  2. Mohammed Javeed Ansari, M.D.Chicago, IL 606111487688131
  3. Daniel Battle, MDChicago, IL 606111457325037
  4. Eudora Eng, M.D.Chicago, IL 606111639261621
  5. John Friedewald, MDChicago, IL 606111508801093
  6. Lorenzo Gallon, MDChicago, IL 606111427093848
  7. Cybele Ghossein, MDChicago, IL 606111376588830
  8. Bing Ho, MDChicago, IL 606111881771731

Common questions

What is Tamara Isakova, MD's NPI number?

Tamara Isakova, MD's National Provider Identifier (NPI) is 1902879778, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tamara Isakova, MD located?

The NPPES record lists a practice address at 633 N Saint Clair St, Chicago, IL, 60611. Phone: (312) 503-6921. Providers update this record themselves, so call before visiting.

How can I verify Tamara Isakova, 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 Tamara Isakova, MD prescribe under Medicare Part D?

In 2024, Tamara Isakova, MD had 151 Medicare Part D claims for 37 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Tamara Isakova, MD's MIPS final score?

The 2023 MIPS final score is 94.1 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.