Glenn M. Colassi, CRNA
Certified Registered Nurse Anesthetist · Worcester, MA
Glenn M. Colassi, CRNA is a certified registered nurse anesthetist with a practice address in Worcester, Massachusetts, and NPI 1891019907, issued on Mar 18, 2010. Check the license (Massachusetts RN234908, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Glenn M. Colassi
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- RN234908 MA
209018499 IL
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-3271
- Enumerated
- Mar 18, 2010
- Record last updated
- Jan 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (508) 856-5911
- Medicare enrollment
- Enrolled (PECOS I20101110000423); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 1,342 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nawal Aamir, MDInternal Medicine Physician1588248926
- Amarys Abadie, CRNACertified Registered Nurse Anesthetist1992936843
- Paula Abate, NPNurse Practitioner1336265909
- Aly AbayazeedDiagnostic Radiology Physician1821221946
- Zainab AbbasDermatology Physician1609028000
- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Glenn M. Colassi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN234908Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $107.13
6 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Atlantic Anesthesia PCNorwood, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Glenn M. Colassi among 1,342 certified registered nurse anesthetist records in Massachusetts
Glenn M. Colassi, CRNA is one of 1,342 certified registered nurse anesthetist records with a practice address in Massachusetts. 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 2010, is newer than 45% of them.
- NPI issued2010 · 45% of these records are older, 52% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2009 · median 2013 among the 1,006 with a school on file
- Record last updated2019 · 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 367500000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 certified registered nurse anesthetist records list a practice address in Worcester
They are 155 of the 13,166 NPPES records with a practice address in Worcester, and 1,342 certified registered nurse anesthetist records in Massachusetts.
All 1,342 in Massachusetts → Every provider in Worcester → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Andrea Dapp, CRNAWorcester, MA 016551164497657
- Milady Dixson, CRNAWorcester, MA 016551194787028
- Marilee Edwards, CRNAWorcester, MA 016551013973486
- Thomas Fish, CRNAWorcester, MA 016551932100666
- Debra Gardner, CRNAWorcester, MA 016551952364960
- Dianna Gibbs, CRNAWorcester, MA 016551740218429
- Jennifer Jett, CRNAWorcester, MA 016551033141767
- Maria Kattner, CRNAWorcester, MA 016551326147257
Common questions
What is Glenn M. Colassi, CRNA's NPI number?
Glenn M. Colassi, CRNA's National Provider Identifier (NPI) is 1891019907, issued on Mar 18, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Glenn M. Colassi, CRNA located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-3271. Providers update this record themselves, so call before visiting.
How can I verify Glenn M. Colassi, CRNA's license?
NPPES lists Massachusetts license number RN234908, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.