Melissa Dawn Gregorius, CRNA
Certified Registered Nurse Anesthetist · Redlands, CA
Melissa Dawn Gregorius, CRNA is a certified registered nurse anesthetist with a practice address in Redlands, California, and NPI 1942440359, issued on Feb 24, 2009. Check the license (California 3832, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Melissa Dawn Gregorius
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- 3832 CA
595317 CA
Self-reported in NPPES; status is on the state search - Practice location
- 915 LA Flora Dr, Redlands, CA 92373
- Phone
- (909) 556-0325
- Enumerated
- Feb 24, 2009
- Record last updated
- Feb 1, 2022
- Medicare enrollment
- Enrolled (PECOS I20091217000225); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →
Verify Melissa Dawn Gregorius in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 3832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 95.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Anesthesia Care Consultants IncSanta Cruz, CA
- Mai Nursing Anesthesia PCPinole, CA
- St Johns Lutheran Hospital IncLibby, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Melissa Dawn Gregorius among 2,943 certified registered nurse anesthetist records in California
Melissa Dawn Gregorius, CRNA is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 39% of them.
- NPI issued2009 · 39% of these records are older, 59% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2009 · median 2016 among the 2,089 with a school on file
- Record last updated2022 · 51% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Certified Registered Nurse Anesthetist providers in California
There are 2,943 certified registered nurse anesthetist records in California.
All 2,943 in California → Every provider in Redlands → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Kristin BairosRedlands, CA 923731669612180
- Rafael Gutierrez-MartinRedlands, CA 923731710682760
- Brittany StokesRedlands, CA 923731225425119
- Nazaret Tomassian, CRNARedlands, CA 923731013310317
- Craig Turner, CRNARedlands, CA 923731003808726
- Mario Khong, DNPRedlands, CA 923741629759857
- Brittany PechinkoRedlands, CA 923741750735353
- Ambawalage SilvaRedlands, CA 923741326805482
Common questions
What is Melissa Dawn Gregorius, CRNA's NPI number?
Melissa Dawn Gregorius, CRNA's National Provider Identifier (NPI) is 1942440359, issued on Feb 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Dawn Gregorius, CRNA located?
The NPPES record lists a practice address at 915 LA Flora Dr, Redlands, CA, 92373. Phone: (909) 556-0325. Providers update this record themselves, so call before visiting.
How can I verify Melissa Dawn Gregorius, CRNA's license?
NPPES lists California license number 3832, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Melissa Dawn Gregorius, CRNA's MIPS final score?
The 2023 MIPS final score is 95.4 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.