KATHERINE MARGARET FAIR MD
NPI 1629531777
Internal Medicine in Boston, MA

Active since April 07, 2019PECOS EnrolledAccepts Medicare Assignment
93.09/100
CMS Quality Rating
725 ALBANY ST # 9B, BOSTON, MA 02118(617) 638-7480 Get Directions Write a Review

NPPES record last updated: April 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 13, 2026, Dec 1, 2025, May 10, 2022 and 3 more (6 updates tracked since 2019).

About Katherine Margaret Fair Md NPPES

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

KATHERINE MARGARET FAIR MD (NPI 1629531777) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1023397) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (2019).

NPPES Registry Identity

NPI1629531777
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKATHERINE MARGARET FAIRCredential: MD
Location Address725 ALBANY ST # 9BBoston, MA 02118-3549
Mailing Address41 Mall RdBurlington, MA 01805-0001 · (781) 744-8085
Sole ProprietorNo
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 2019
Enumeration DateApril 7, 2019
Last NPPES UpdateApril 13, 20266 updates tracked since enumeration
NPPES CertifiedApril 13, 2026
NPI 1629531777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in MA · 1023397 Licensed in WA · MD61184746
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License PHY104778 (MA)
Also ListedHospitalistTaxonomy 208M00000X · License MD61184746 (WA)
725 ALBANY ST # 9B, Boston, MA 02118

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Katherine Margaret Fair Md 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 ID6305170531
PECOS Enrollment IDI20260521001969
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 02118 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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.

93.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality73.95
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Pulmonary Disease)
725 ALBANY ST # 9B
BOSTON, MA 02118

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 Katherine Fair's NPI number?

The NPI number for Katherine Fair is 1629531777. It was assigned to this individual provider in the NPPES registry on April 7, 2019.

Where is Katherine Fair located?

Katherine Fair practices at 725 Albany St # 9B, Boston, MA 02118. The listed phone number is (617) 638-7480.

What is Katherine Fair's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Katherine Fair enrolled in Medicare?

Yes. Katherine Fair 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.

When was this NPI record last updated?

The NPPES record for Katherine Fair was last updated on April 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.