1. Home
  2. Directory
  3. New Hampshire
  4. Nashua
  5. Orthopaedic Surgery
  6. NPI Profile

DR. SEAN CHARLES LUCAS FROST M.D.
NPI 1457375248
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery in Nashua, NH

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
76.01/100
CMS Quality Rating
21 E HOLLIS ST, NASHUA, NH 03060(603) 577-4000(603) 640-1228 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Sean Charles Lucas Frost M.d. NPPES

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

DR. SEAN CHARLES LUCAS FROST M.D. (NPI 1457375248) is an individual adult reconstructive orthopaedic surgery provider in Nashua, New Hampshire, licensed in New Hampshire (12875) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1457375248
Entity TypeIndividualMale
Primary Taxonomy207XS0114X
Provider Legal NameDR. SEAN CHARLES LUCAS FROSTCredential: M.D.
Location Address21 E HOLLIS STNashua, NH 03060-2928
Mailing Address21 E Hollis StNashua, NH 03060-2928 · (603) 577-4000
Phone(603) 577-4000
Fax(603) 640-1228
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJuly 26, 2006
Last NPPES UpdateJanuary 12, 2026
NPPES CertifiedJanuary 12, 2026
✔ NPI 1457375248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Adult Reconstructive Orthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XS0114X
License✔ Licensed in NH · 12875
Definition
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, adult reconstructive orthopaedic surgeons deal with reconstructive procedures such as joint arthroplasty (i.e., hip and knee), osteotomy, arthroscopy, soft-tissue reconstruction, and a variety of other adult reconstructive surgical procedures.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 12875 (NH)
21 E HOLLIS ST, Nashua, NH 03060
Open in Google Maps ↗

Other Identifiers 1

Medicaid30205512NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sean Charles Lucas Frost M.d. 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 ID5890751754
PECOS Enrollment IDI20051031000735
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

3

Medicare enrollment records show Sean Frost reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Foundation Medical Partners Inc
0.1 mi
Internal Medicine
8 PROSPECT ST
Nashua, NH 03060
  • Reassigned Medicare billing, New Hampshire enrollment
  • 283 clinicians in this Medicare group
NPI 1033162037 (603) 281-8585
Dartmouth-Hitchcock Clinic
18 mi
Family Medicine
100 HITCHCOCK WAY
Manchester, NH 03104
  • Reassigned Medicare billing, New Hampshire enrollment
  • Also billed through NPI 1174176861 (New Hampshire)
  • 227 clinicians in this Medicare group
NPI 1386697803 (603) 695-2500
Mary Hitchcock Memorial Hospital
18 mi
Psychiatric Hospital
218 EAST RD
Hampstead, NH 03841
  • Reassigned Medicare billing, New Hampshire enrollment
  • 2,620 clinicians in this Medicare group
NPI 1699584219 (603) 650-5000

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 7

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
239 services181 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
80 services76 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
57 services57 patients
Replacement of knee joint, both sides of knee 27447
A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.
50 services49 patients
Computer-assisted surgery for muscle and bone procedure 20985
Computer-assisted surgery for muscle and bone procedures involves using a computer to aid in planning and performing surgery. This technology helps increase precision, reduce invasiveness, and improve outcomes. It's commonly used in orthopedic surgeries like joint replacements.
49 services48 patients
Replacement of thigh bone and hip joint with prosthesis 27130
This procedure, known as hip arthroplasty, involves replacing your damaged thigh bone and hip joint with artificial parts, called a prosthesis. It helps relieve pain, improve mobility, and enhance your quality of life.
28 services28 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mary Hitchcock Memorial Hospital

Acute Care Hospitals · Lebanon, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300003
Location1 Medical Center DriveLebanon, NH 03756 · Grafton County
Emergency services Birthing friendly

St Joseph Hospital

Acute Care Hospitals · Nashua, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number300011
Location172 Kinsley StNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

Elliot Hospital

Acute Care Hospitals · Manchester, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300012
Location1 Elliot WayManchester, NH 03103 · Hillsborough County
Emergency services Birthing friendly

Southern Nh Medical Center

Acute Care Hospitals · Nashua, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300020
Location8 Prospect StreetNashua, NH 03060 · Hillsborough County
Emergency services Birthing friendly

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.

76.01/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality65.31
Promoting Interoperability100
Improvement Activities40
Cost54.74

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.

MAUREEN KNEPP PA-C
Physician Assistant (Surgical)
21 E HOLLIS ST, DARTMOUTH HITCHCOCK CLINIC
NASHUA, NH 03060
Hillsborough County (603) 577-4000
STACEY ANN ABBIS M.D.
Surgery
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4260
SUSAN E KRASNER CNM, MS, ARNP
Advanced Practice Midwife
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 477-4300
MRS. LISA ANN DEMERS M.S.
Genetic Counselor, MS
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4313
DR. SADIG M. MONAWAR M.D.
Internal Medicine
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4000
DR. SADAF ASHRAF M.D.
Internal Medicine
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4000
KATHRYN ANNE BOMBA MS
Genetic Counselor, MS
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4300
DR. MICHAEL BARR M.D.
Surgery
21 E HOLLIS ST
NASHUA, NH 03060
Hillsborough County (603) 577-4000

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 Sean Frost's NPI number?

The NPI number for Sean Frost is 1457375248. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Sean Frost located?

Sean Frost practices at 21 E Hollis St, Nashua, NH 03060. The listed phone number is (603) 577-4000.

What is Sean Frost's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Adult Reconstructive Orthopaedic Surgery, with taxonomy code 207XS0114X.

Is Sean Frost enrolled in Medicare?

Yes. Sean Frost 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.

Which organizations bill Medicare for Sean Frost's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Frost reassigns Medicare benefits to 3 organizations: Foundation Medical Partners Inc (Nashua, NH), Dartmouth-Hitchcock Clinic (Manchester, NH) and Mary Hitchcock Memorial Hospital (Hampstead, NH). 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 Sean Frost's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sean Frost accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Sean Frost 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.

Is Sean Frost affiliated with any hospitals?

According to CMS data, Sean Frost is affiliated with Mary Hitchcock Memorial Hospital, St Joseph Hospital, Elliot Hospital and Southern Nh Medical Center.

When was this NPI record last updated?

The NPPES record for Sean Frost was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.