Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MELISSA LARSON MD
NPI 1477530566
Anesthesiology in Denver, CO

Q: What is Melissa Larson's NPI number?

The NPI number for Melissa Larson is 1477530566. It was assigned to this individual provider in the NPPES registry on December 29, 2005.

Q: What is Melissa Larson's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Melissa Larson was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 29, 2005PECOS EnrolledAccepts Medicare Assignment

80.97/100

CMS Quality Rating

455 SHERMAN ST, STE 510, DENVER, CO 80203(303) 377-6825(303) 780-0787 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Melissa Larson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MELISSA LARSON MD (NPI 1477530566) is an individual anesthesiology provider in Denver, Colorado, licensed in Colorado (DR.0036840) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, maintains a secondary practice location in Westminster, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1994).

NPPES Registry Identity

NPI1477530566

Entity TypeIndividualFemale

Primary Taxonomy207L00000X

Provider Legal NameMELISSA LARSONCredential: MD

Location Address455 SHERMAN ST, STE 510Denver, CO 80203-4400

Mailing Address455 N Sherman St Ste 510Denver, CO 80203-4405 · (303) 377-6825 · Fax (303) 780-0787

Phone(303) 377-6825

Fax(303) 780-0787

Sole ProprietorNo

Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1994

Enumeration DateDecember 29, 2005

Last NPPES UpdateJuly 9, 2026

NPPES CertifiedJuly 9, 2026

✔ NPI 1477530566 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CO · DR.0036840

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

455 SHERMAN ST, Denver, CO 80203

Open in Google Maps ↗

Secondary Practice Location 1

Location 114300 Orchard PkwyWestminster, CO 80023-9206 · Phone (720) 627-4479 · Fax (720) 627-3382

Other Identifiers 8

Medicaid114221600WY

Medicaid3506685MT

Medicaid100335770AKS

Medicaid84113438513NE

Medicaid8648603NJ

MedicaidXPY204583CA

Medicaid27807070CO

MedicaidZ5206NM

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Melissa Larson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234266081

PECOS Enrollment IDI20100427000508

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on nose and sinuses 00160

Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.

12 services11 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.97/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

65.4

Improvement Activities

Cost

100

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GREGORY HOPKINS CRNA

Nurse Anesthetist, Certified Registered

455 SHERMAN ST, STE 5100
DENVER, CO 80203

Denver County (303) 377-6825

MICHAEL O'CALLAGHAN MD

Anesthesiology

455 SHERMAN ST, STE 510
DENVER, CO 80203

Denver County (303) 377-6825

STACY E CASON CRNA

Nurse Anesthetist, Certified Registered

455 SHERMAN ST, STE. 510
DENVER, CO 80203

Denver County (303) 377-6825

ALEX CARRILLO MD

Anesthesiology

455 SHERMAN ST, STE 510
DENVER, CO 80203

Denver County (303) 377-6825

KARL P FRITZ MD

Anesthesiology (Pediatric Anesthesiology)

455 SHERMAN ST, STE 510
DENVER, CO 80203

Denver County (303) 377-6825

CHILDREN'S ANESTHESIA, P.C.

Anesthesiology

455 SHERMAN ST, SUITE 510
DENVER, CO 80203

Denver County (303) 336-8304

RAFAEL S CAMPANINI M.D.

Anesthesiology (Pediatric Anesthesiology)

455 SHERMAN ST, STE 510
DENVER, CO 80203

Denver County (303) 744-8644

DAVID DALGLEISH CRNA

Anesthesiology

455 SHERMAN ST, STE 510
DENVER, CO 80203

Denver County (303) 336-8304

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melissa Larson's NPI number?

The NPI number for Melissa Larson is 1477530566. It was assigned to this individual provider in the NPPES registry on December 29, 2005.

Where is Melissa Larson located?

Melissa Larson practices at 455 Sherman St Ste 510, Denver, CO 80203. The listed phone number is (303) 377-6825.

What is Melissa Larson's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Melissa Larson enrolled in Medicare?

Yes. Melissa Larson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Melissa Larson accept?

Health plans from Oscar Insurance Company list Melissa Larson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Melissa Larson was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.