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MELISSA B. GILLESPIE
NPI 1649208471
Emergency Medicine in Boulder, CO

Active since June 29, 2006PECOS Enrolled
4747 ARAPAHOE AVE, BOULDER, CO 80303(303) 415-7000(303) 306-7753 Get Directions Write a Review

NPPES record last updated: June 22, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Melissa B. Gillespie NPPES

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

MELISSA B. GILLESPIE (NPI 1649208471) is an individual emergency medicine provider in Boulder, Colorado, licensed in Colorado (DR.0056823) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649208471
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameMELISSA B. GILLESPIE
Location Address4747 ARAPAHOE AVEBoulder, CO 80303-1131
Mailing AddressPo Box 173894Denver, CO 80217-3894 · (303) 306-7783 · Fax (303) 306-7753
Phone(303) 415-7000
Fax(303) 306-7753
Sole ProprietorNo
Enumeration DateJune 29, 2006
Last NPPES UpdateJune 22, 2016
✔ NPI 1649208471 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CO · DR.0056823✔ Licensed in IL · 036-084265
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4747 ARAPAHOE AVE, Boulder, CO 80303
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Other Names 1

Professional Name (2)Melissa B. Gillespie M.d.

Other Identifiers 4

OtherDR.0056823CO · Colorado Medical License
Medicaid036-084265IL
Medicare UPINF41293IL
Medicare ID-Type UnspecifiedL82953IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming, Select Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Melissa B. Gillespie is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Melissa Gillespie reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Boulder Community Health
Same address
Medical Specialty
4747 ARAPAHOE AVE
Boulder, CO 80303
  • Reassigned Medicare billing, Colorado enrollment
  • 283 clinicians in this Medicare group
NPI 1144877523 (303) 415-7610
Boulder Emergency Physicians PC
Same address
Emergency Medicine
4747 ARAPAHOE AVE
Boulder, CO 80303
  • Reassigned Medicare billing, Colorado enrollment
  • Medicare enrollment name: Boulder Emergency Physicians P.C.
  • 23 clinicians in this Medicare group
NPI 1083212989 (303) 415-7000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
39 services37 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
22 services22 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80303 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ELIZABETH KALEIGH JANE SMITH
Registered Nurse
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7606
ALICE AMES RDN
Dietitian, Registered
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7047
NATHAN HANTZ
Pharmacist
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7000
JEANIE JUNGBAUER
Doula
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7000
DR. KATHERINE MACCHI PHARMD
Pharmacist
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7780
BOULDER PLASTIC SURGERY PROF LLC
Specialist
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (720) 854-7000
VANESSA HOFMANN
Registered Nurse (General Practice)
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7000
DR. SANTIAGO DE LA GARZA M.D.
Internal Medicine
4747 ARAPAHOE AVE
BOULDER, CO 80303
Boulder County (303) 415-7610

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 Gillespie's NPI number?

The NPI number for Melissa Gillespie is 1649208471. It was assigned to this individual provider in the NPPES registry on June 29, 2006. The provider is also known as Melissa B. Gillespie M.D..

Where is Melissa Gillespie located?

Melissa Gillespie practices at 4747 Arapahoe Ave, Boulder, CO 80303. The listed phone number is (303) 415-7000.

What is Melissa Gillespie's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Melissa Gillespie enrolled in Medicare?

Yes. Melissa Gillespie is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Melissa Gillespie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Gillespie reassigns Medicare benefits to 2 organizations: Boulder Community Health (Boulder, CO) and Boulder Emergency Physicians PC (Boulder, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Gillespie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Gillespie accept?

Health plans from Blue Cross Blue Shield of Wyoming and Select Health list Melissa Gillespie 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 Gillespie was last updated on June 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.