CATHERINE PARKHURST GARDINER MD
NPI 1922666288
Internal Medicine - Sports Medicine in Boston, MA

Q: What is Catherine Gardiner's NPI number?

The NPI number for Catherine Gardiner is 1922666288. It was assigned to this individual provider in the NPPES registry on June 3, 2019. The provider is also known as Catherine Hough Parkhurst.

Q: What is Catherine Gardiner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sports Medicine, with taxonomy code 207RS0010X.

Active since June 03, 2019PECOS Enrolled

300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: July 8, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 8, 2025, Aug 29, 2022, Jun 3, 2019 (3 updates tracked since 2019).

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About Catherine Parkhurst Gardiner Md NPPES

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

CATHERINE PARKHURST GARDINER MD (NPI 1922666288) is an individual sports medicine provider in Boston, Massachusetts, licensed in Massachusetts (291472) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922666288

Entity TypeIndividualFemale

Primary Taxonomy207RS0010X

Provider Legal NameCATHERINE PARKHURST GARDINERCredential: MD

Location Address300 LONGWOOD AVEBoston, MA 02115-5724

Mailing Address300 Longwood AveBoston, MA 02115-5724

Phone(617) 355-6000

Sole ProprietorNo

Enumeration DateJune 3, 2019

Last NPPES UpdateJuly 8, 20253 updates tracked since enumeration

NPPES CertifiedJuly 8, 2025

✔ NPI 1922666288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0010X

License✔ Licensed in MA · 291472

Definition

An internist trained to be responsible for continuous care in the field of sports medicine, not only for the enhancement of health and fitness, but also for the prevention of injury and illness. A sports medicine physician must have knowledge and experience in the promotion of wellness and the prevention of injury. Knowledge about special areas of medicine such as exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation, epidemiology, physical evaluation, injuries (treatment and prevention and referral practice) and the role of exercise in promoting a healthy lifestyle are essential to the practice of sports medicine. The sports medicine physician requires special education to provide the knowledge to improve the healthcare of the individual.

300 LONGWOOD AVE, Boston, MA 02115

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Other Names 1

Former Name (1)Catherine Hough Parkhurst

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Catherine Parkhurst Gardiner 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 Reassignments

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

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

0.2 mi

Internal Medicine

330 BROOKLINE AVE
Boston, MA 02215

Reassigned Medicare billing, Massachusetts enrollment
2,579 clinicians in this Medicare group

NPI 1194765438 (617) 754-9600

Whsp Medical PC

2.5 mi

Multi-Specialty

20 GUEST ST STE 200
Brighton, MA 02135

Reassigned Medicare billing, Massachusetts enrollment
8 clinicians in this Medicare group

NPI 1225826712 (215) 694-7158

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.

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.

47 services42 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

29 services25 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.

18 services17 patients

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

MRS. LAUREN ASHLEY SHARIS 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 Catherine Gardiner's NPI number?

The NPI number for Catherine Gardiner is 1922666288. It was assigned to this individual provider in the NPPES registry on June 3, 2019. The provider is also known as Catherine Hough Parkhurst.

Where is Catherine Gardiner located?

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

What is Catherine Gardiner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sports Medicine, with taxonomy code 207RS0010X.

Is Catherine Gardiner enrolled in Medicare?

Yes. Catherine Gardiner is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Catherine Gardiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Gardiner reassigns Medicare benefits to 2 organizations: Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Whsp Medical PC (Brighton, MA). 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 Catherine Gardiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Catherine Gardiner was last updated on July 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.