RALPH J BLAIR M.D.
NPI 1275568230
Hospitalist in Cambridge, MA

Q: What is Ralph Blair's NPI number?

The NPI number for Ralph Blair is 1275568230. It was assigned to this individual provider in the NPPES registry on July 11, 2006.

Q: What is Ralph Blair's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Ralph Blair was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 11, 2006PECOS Enrolled

330 MOUNT AUBURN ST, CAMBRIDGE, MA 02138(617) 492-3500 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Ralph J Blair M.d. NPPES

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

RALPH J BLAIR M.D. (NPI 1275568230) is an individual hospitalist provider in Cambridge, Massachusetts, licensed in Massachusetts (51227) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275568230

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameRALPH J BLAIRCredential: M.D.

Location Address330 MOUNT AUBURN STCambridge, MA 02138-5502

Mailing Address147 Milk St, Provider Enrollment - 9th FloorBoston, MA 02109-4806 · (617) 559-8374 · Fax (617) 421-3487

Phone(617) 492-3500

Sole ProprietorNo

Enumeration DateJuly 11, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1275568230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in MA · 51227

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 51227 (MA)

Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 51227 (MA)

330 MOUNT AUBURN ST, Cambridge, MA 02138

Open in Google Maps ↗

Other Identifiers 5

Medicaid3004481MA

Other722575MA · Tufts

Other0015282MA · Neighborhood Health

OtherJ05173MA · Blue Cross

OtherPV408MA · Harvard Pilgrim

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ralph J Blair 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 02138 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.

Leave this field empty