NPPES file of Aug 9, 2026

Fabio Grassia, MD

Neurological Surgery Physician · Aurora, CO

Fabio Grassia, MD is a neurological surgery physician with a practice address in Aurora, Colorado, and NPI 1275141756, issued on Jul 21, 2020. Check the license (Colorado TDP.0041934, 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
1275141756
Name
Fabio Grassia
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
TDP.0041934 CO
Self-reported in NPPES; status is on the state search
Practice location
12605 E 16TH Ave, Aurora, CO 80045
Phone
(720) 848-0000
Enumerated
Jul 21, 2020
Record last updated
Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210809003439); 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 12605 E 16TH Ave

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

  1. Benjamin Aakre, MDAnesthesiology Physician1407140395
  2. Alec Aaronson, DOPsychiatry Physician1972065233
  3. Mona Abaza, MDOtolaryngology Physician1043313844
  4. Meagan AbbagnaroAnesthesiologist Assistant1851254262
  5. Jean Abbott, MDEmergency Medicine Physician1578672820
  6. Adam Abraham, MDInternal Medicine Physician1720178304

Verify Fabio Grassia in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license TDP.0041934
    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

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The practice group's MIPS final score for 2023 (Medicare payment program): 91.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score90.2
  2. Costout of 100 · 30%73.5
  3. Promoting interoperabilityout of 100 · 25%88.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $1,030.46

7 payments; by number, the most common kind was travel and lodging; the largest payer was Medtronic, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Fabio Grassia$1,030
  2. Specialty average$14,926

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. Denver Health And Hospital AuthorityDenver, CO

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

Fabio Grassia among 175 neurological surgery physician records in Colorado

Fabio Grassia, MD is one of 175 neurological surgery physician records with a practice address in Colorado. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 97% of them.

  • NPI issued2020 · 97% of these records are older, 2% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2013 · median 2006 among the 110 with a school on file
  • Record last updated2021 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in Colorado

There are 175 neurological surgery physician records in Colorado.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Robert Breeze, MDAurora, CO 800451598868390
  2. Kerry Brega, MDAurora, CO 800451407959208
  3. John Coon, MDAurora, CO 800451558369264
  4. Wayne Gluf, MDAurora, CO 800451518930775
  5. Michael Handler, MDAurora, CO 800451477646826
  6. Yasuaki Harasaki, MDAurora, CO 800451538206883
  7. James Kelly, MDAurora, CO 800451033212832
  8. Peter Lennarson, MDAurora, CO 800451013966001

Common questions

What is Fabio Grassia, MD's NPI number?

Fabio Grassia, MD's National Provider Identifier (NPI) is 1275141756, issued on Jul 21, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Fabio Grassia, MD located?

The NPPES record lists a practice address at 12605 E 16TH Ave, Aurora, CO, 80045. Phone: (720) 848-0000. Providers update this record themselves, so call before visiting.

How can I verify Fabio Grassia, MD's license?

NPPES lists Colorado license number TDP.0041934, 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.

What is Fabio Grassia, MD's MIPS final score?

The 2023 MIPS final score is 91.1 of 100, reported for the practice group. 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.