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Obstetrics/Gynecology

Tiffany L. Blake Lamb, MD

Works at hospitals in Boston, MA · Nantucket, MA · Massachusetts

Summary

Dr. Tiffany L. Blake Lamb, MD is an OB-GYN at 55 Fruit St, Boston, MA 02114. Phone: (617) 724-0287. Accepts Medicare assignment. In 2024, Tiffany L. Blake Lamb had 13 Original Medicare patients and 17 services. NPI 1043473622. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 55 Fruit St, Boston, MA 02114 · Directions (1 more location)
  • Phone: (617) 724‑0287
  • Medicare: Accepts Medicare assignment
  • Hospitals: Massachusetts General Hospital, Nantucket Cottage Hospital
  • Group practice: Massachusetts General Physicians Organization Inc (+2 more)
  • Medical school: University Of Arizona College Of Medicine · graduated 2008 (18 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Tiffany L. Blake Lamb, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Tiffany L. Blake Lamb accept Medicare assignment?
Yes. Medicare's clinician data says Tiffany L. Blake Lamb accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Tiffany L. Blake Lamb see?
In 2024, CMS data shows 13 Original Medicare patients and 17 services for Tiffany L. Blake Lamb. This counts Original Medicare only and measures volume, not quality.
What is Tiffany L. Blake Lamb's NPI number?
1043473622. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Tiffany L. Blake Lamb, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients13
Services billed to Medicare17
Different services or procedures9
Participating Medicare providerYes
Average age of these patients69

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%

Hospitals where Tiffany L. Blake Lamb works

Medicare's Facility Affiliation Data lists Tiffany L. Blake Lamb at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Tiffany L. Blake Lamb is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Tiffany L. Blake Lamb as a member of these groups (CMS data updated October 2, 2026).

  • Massachusetts General Physicians Organization Inc3,558 clinicians in the group
  • Nantucket Cottage Hospital87 clinicians in the group
  • Nantucket Physicians Organization21 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Massachusetts →

Other OB-GYNs in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

All OB-GYNs in Boston →

Other clinicians in Massachusetts General Physicians Organization Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Arizona College Of Medicine
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043473622
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians