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KATHARINE FOSTER HOLLNAGEL M.D.
NPI 1295180289
Orthopaedic Surgery in Boston, MA

Active since April 27, 2016PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: September 20, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 20, 2022, Jun 24, 2021 (2 updates tracked since 2021).

About Katharine Foster Hollnagel M.d. NPPES

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

KATHARINE FOSTER HOLLNAGEL M.D. (NPI 1295180289) is an individual orthopaedic surgery provider in Boston, Massachusetts, licensed in Massachusetts (T292578) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Diego.

NPPES Registry Identity

NPI1295180289
Entity TypeIndividualFemale
Primary Taxonomy207X00000X
Provider Legal NameKATHARINE FOSTER HOLLNAGELCredential: M.D.
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Phone(617) 355-6000
Sole ProprietorNo
Enumeration DateApril 27, 2016
Last NPPES UpdateSeptember 20, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 20, 2022
✔ NPI 1295180289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in MA · T292578✔ Licensed in CA · A172578
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
300 LONGWOOD AVE, Boston, MA 02115
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Secondary Practice Location 1

Location 13030 Childrens WaySan Diego, CA 92123-4232 · Phone (858) 966-6789

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Antidote Health Plan of Ohio, Inc., CareSource, MedMutual and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katharine Foster Hollnagel M.d. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MISS LAUREN ASHLEY MASTERSON P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

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 Katharine Hollnagel's NPI number?

The NPI number for Katharine Hollnagel is 1295180289. It was assigned to this individual provider in the NPPES registry on April 27, 2016.

Where is Katharine Hollnagel located?

Katharine Hollnagel practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Katharine Hollnagel's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Katharine Hollnagel enrolled in Medicare?

Yes. Katharine Hollnagel is registered in the Medicare PECOS enrollment system.

What insurance does Katharine Hollnagel accept?

Health plans from Antidote Health Plan of Ohio, Inc., CareSource, MedMutual and Molina Healthcare list Katharine Hollnagel 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 Katharine Hollnagel was last updated on September 20, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.