NPPES file of Aug 9, 2026

John Louis Shaia, MD

Hematology & Oncology Physician · Denver, CO

John Louis Shaia, MD is a hematology & oncology physician with a practice address in Denver, Colorado, and NPI 1962679605, issued on May 12, 2008. Check the license (Colorado 49364, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962679605
Name
John Louis Shaia
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
49364 CO
MD036900 DC
Self-reported in NPPES; status is on the state search
Practice location
2045 N Franklin St, Denver, CO 80205
Phone
(303) 338-4545
Enumerated
May 12, 2008
Record last updated
Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
31352774 CO
Medicare enrollment
Enrolled (PECOS I20120502000244); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2003
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 2045 N Franklin St

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

  1. Joseph Abruzzo, M.D.Cardiovascular Disease Physician1336276385
  2. Alicia Adams, O.D.Optometrist1790072643
  3. Gareth Adams, MDNeurological Surgery Physician1750611158
  4. Alison Agner, M.D.Obstetrics & Gynecology Physician1467662833
  5. Adele Alcocer, RN BSNRegistered Nurse1285176495
  6. Leonardo Alfaro, M.D.Surgery Physician1326251398

Verify John Louis Shaia in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 49364
    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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27% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

636 Medicare Part D claims for 87 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 22 claims were for opioids.

  1. John Shaia636
  2. Specialty average877

Most prescribed

  1. Abiraterone Acetate72 claims
  2. Prednisone72 claims
  3. Xtandi65 claims
  4. Entecavir38 claims
  5. Ondansetron Hcl37 claims
  6. Dexamethasone28 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Francisco, CA

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

John Louis Shaia among 212 hematology & oncology physician records in Colorado

John Louis Shaia, MD 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 2008, is newer than 66% of them.

  • NPI issued2008 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2003 · median 2004 among the 150 with a school on file
  • Record last updated2021 · 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. Lala Cornelius, MDDenver, CO 802051538107149
  2. Matthew Eadens, MDDenver, CO 802051831236116
  3. Jesus Hermosillo Rodriguez, MDDenver, CO 802051003133448
  4. Heather Hue, M.D.,M.P.HDenver, CO 802051043271588
  5. Brian Koester, MDDenver, CO 802051851435622
  6. Karen Kogel, MDDenver, CO 802051245367267
  7. Hemchandra Mahaseth, MDDenver, CO 802051396956181
  8. Benjamin Scheier, M.D.Denver, CO 802051750607115

Common questions

What is John Louis Shaia, MD's NPI number?

John Louis Shaia, MD's National Provider Identifier (NPI) is 1962679605, issued on May 12, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Louis Shaia, MD located?

The NPPES record lists a practice address at 2045 N Franklin St, Denver, CO, 80205. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.

How can I verify John Louis Shaia, MD's license?

NPPES lists Colorado license number 49364, 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 John Louis Shaia, MD prescribe under Medicare Part D?

In 2024, John Louis Shaia, MD had 636 Medicare Part D claims for 87 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.