NPPES file of Aug 9, 2026

Vignesh Narayanan, M.D

Hematology & Oncology Physician · Denver, CO

Vignesh Narayanan, M.D is a hematology & oncology physician with a practice address in Denver, Colorado, and NPI 1073632675, issued on Mar 28, 2007. Check the license (Colorado 0045677, as entered in NPPES) on the Colorado Medical Board; 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
1073632675
Name
Vignesh Narayanan
Credential
M.D
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
0045677 CO
45677 CO
Self-reported in NPPES; status is on the state search
Practice location
100 Cook St Ste 202, Denver, CO 80206
Phone
(720) 516-9413
Enumerated
Mar 28, 2007
Record last updated
May 4, 2023
Fax
(720) 516-9441
Medicaid ID
75928744 CO
Medicare enrollment
Enrolled (PECOS I20070830000723); 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.
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Also registered at 100 Cook St Ste 202

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

  1. Nina Casanova, MDUrology Physician1447471602
  2. Brooke Ferguson, FNP-BCAcute Care Nurse Practitioner1326632217
  3. Holly Harges, PASurgical Physician Assistant1942780804
  4. Scott Kono, DOMedical Oncology Physician1184671067
  5. Neale Lange, MDSleep Medicine (Internal Medicine) Physician1558337642

Verify Vignesh Narayanan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 0045677
    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 Colorado 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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52% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

419 Medicare Part D claims for 99 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 12 claims were for opioids.

  1. Vignesh Narayanan419
  2. Specialty average877

Most prescribed

  1. Ondansetron Hcl24 claims
  2. Eliquis18 claims
  3. Anastrozole17 claims
  4. Hydroxyurea16 claims
  5. Prochlorperazine Maleate15 claims
  6. Acyclovir14 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): 97.6 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 score86.5
  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).

Industry payments in 2024: $256.87

4 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Vignesh Narayanan$256.87
  2. Specialty average$7,481.41

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

  1. Poudre Valley Medical Group LLCDenver, CO

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

Vignesh Narayanan among 212 hematology & oncology physician records in Colorado

Vignesh Narayanan, M.D is one of 212 hematology & oncology physician records with a practice address in Colorado. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 34% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2002 · median 2004 among the 150 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Colorado

There are 212 hematology & oncology physician records in Colorado.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. William Lee, M.D.Denver, CO 802061639173693
  2. Lala Cornelius, MDDenver, CO 802051538107149
  3. Matthew Eadens, MDDenver, CO 802051831236116
  4. Jesus Hermosillo Rodriguez, MDDenver, CO 802051003133448
  5. Heather Hue, M.D.,M.P.HDenver, CO 802051043271588
  6. Brian Koester, MDDenver, CO 802051851435622
  7. Karen Kogel, MDDenver, CO 802051245367267
  8. Hemchandra Mahaseth, MDDenver, CO 802051396956181

Common questions

What is Vignesh Narayanan, M.D's NPI number?

Vignesh Narayanan, M.D's National Provider Identifier (NPI) is 1073632675, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Vignesh Narayanan, M.D located?

The NPPES record lists a practice address at 100 Cook St Ste 202, Denver, CO, 80206. Phone: (720) 516-9413. Providers update this record themselves, so call before visiting.

How can I verify Vignesh Narayanan, M.D's license?

NPPES lists Colorado license number 0045677, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Vignesh Narayanan, M.D prescribe under Medicare Part D?

In 2024, Vignesh Narayanan, M.D had 419 Medicare Part D claims for 99 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Vignesh Narayanan, M.D's MIPS final score?

The 2023 MIPS final score is 97.6 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.