1. Home
  2. Directory
  3. Colorado
  4. Longmont
  5. Pediatrics
  6. NPI Profile

DR. GRACE C FAN MD
NPI 1871598276
Pediatrics - Pediatric Emergency Medicine in Longmont, CO

Active since June 14, 2005PECOS Enrolled
1925 W MOUNTAIN VIEW AVE, LONGMONT, CO 80501(303) 776-1234(720) 494-3107 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2018, Feb 27, 2018 (2 updates tracked since 2018).

About Dr. Grace C Fan Md NPPES

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

DR. GRACE C FAN MD (NPI 1871598276) is an individual pediatric emergency medicine provider in Longmont, Colorado, licensed in Colorado (DR.0030740) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and maintains a secondary practice location in Longmont.

NPPES Registry Identity

NPI1871598276
Entity TypeIndividualFemale
Primary Taxonomy2080P0204X
Provider Legal NameDR. GRACE C FANCredential: MD
Location Address1925 W MOUNTAIN VIEW AVELongmont, CO 80501-3128
Mailing AddressPo Box 110429Aurora, CO 80042-0429 · (303) 493-7000
Phone(303) 776-1234
Fax(720) 494-3107
Sole ProprietorNo
Enumeration DateJune 14, 2005
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1871598276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in CO · DR.0030740
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
Also ListedPediatricsTaxonomy 208000000X · License 30740 (CO)
1925 W MOUNTAIN VIEW AVE, Longmont, CO 80501
Open in Google Maps ↗

Secondary Practice Location 1

Location 11925 W Mountain View AveLongmont, CO 80501-3128 · Phone (303) 776-1234 · Fax (720) 494-3107

Other Identifiers 1

Medicaid01307404CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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)

Dr. Grace C Fan Md 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 Reassignment

Medicare enrollment records show Grace Fan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Physicians Incorporated
0.2 mi
Advanced Practice Midwife
2030 MOUNTAIN VIEW AVE STE 400
Longmont, CO 80501
  • Reassigned Medicare billing, Colorado enrollment
  • 4,283 clinicians in this Medicare group
NPI 1659845568 (303) 315-0400

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

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.

DR. LYLE M PFEIFER MD
Family Medicine
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234
LONGMONT CLINIC PC
General Practice
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (720) 494-3173
DR. LINDA BACKUP MD
Internal Medicine (Interventional Cardiology)
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234
DR. KATHERINE DUEBER M.D.
Pediatrics
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234
MS. SHARON R KLOEPFER PA
Physician Assistant
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234
ROBERT O STARK NP
Nurse Practitioner
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234
DR. ROBERT VINCENT NOUHAN MD
Family Medicine
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 833-8880
MS. KAREN DELVECCHIO NP
Nurse Practitioner
1925 W MOUNTAIN VIEW AVE
LONGMONT, CO 80501
Boulder County (303) 776-1234

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 Grace Fan's NPI number?

The NPI number for Grace Fan is 1871598276. It was assigned to this individual provider in the NPPES registry on June 14, 2005.

Where is Grace Fan located?

Grace Fan practices at 1925 W Mountain View Ave, Longmont, CO 80501. The listed phone number is (303) 776-1234.

What is Grace Fan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Grace Fan enrolled in Medicare?

Yes. Grace Fan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Grace Fan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Fan reassigns Medicare benefits to University Physicians Incorporated (Longmont, CO). The 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 Grace Fan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Grace Fan accept?

Health plans from Select Health list Grace Fan 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 Grace Fan was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.