Doctor profile · Federal record

Dr. Rebecca Saff, MD, PHD

Internal Medicine Physician (CMS: Allergy/Immunology) · Boston, MA

  • NPI 1306041983
  • Accepts Medicare
  • 19 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-2066

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #L-232242

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1306041983. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,965
Distinct HCPCS
10
Medicare allowed
$59,645
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 488 19 $5
95044 Test for allergy using skin patch 465 14 $6
95024 Test for allergy using allergenic extract injected into skin 429 17 $9
95018 Test for allergy using combination of methods with drug or biological 120 15 $23
95117 Professional service for multiple injections of allergen 108 42 $14
99214 Established patient office or other outpatient visit, 30-39 minutes 96 81 $138
99213 Established patient office or other outpatient visit, 20-29 minutes 75 68 $100
99215 Established patient office or other outpatient visit, 40-54 minutes 41 35 $196
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 35 11 $84
99204 New patient office or other outpatient visit, 45-59 minutes 28 28 $182

In context: peer comparison

Among 547 peers in this city , average services per provider: 81. This provider delivers 24× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
570
Patients
133
Total drug cost
$694,312
Drug Type Claims Patients Total cost
Dupixent Syringe (Dupilumab) Brand 63 0 $250,502
Dupixent Pen (Dupilumab) Brand 57 0 $235,052
Montelukast Sodium Generic 50 19 $1,593
Epinephrine Generic 45 28 $10,635
Fluticasone Propionate Generic 40 15 $878
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 39 16 $1,470
Symbicort (Budesonide/Formoterol Fumarate) Brand 39 14 $21,929
Azelastine Hcl Generic 36 15 $1,077
Cromolyn Sodium Generic 36 0 $6,721
Prednisone Generic 34 11 $165

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Rebecca Saff's medical specialty?
Dr. Rebecca Saff practices Internal Medicine Physician in Boston, MA.
Where does Dr. Rebecca Saff practice?
Dr. Rebecca Saff practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177262066.
What is Dr. Rebecca Saff's NPI?
Dr. Rebecca Saff's National Provider Identifier (NPI) is 1306041983, issued by NPPES.
Does Dr. Rebecca Saff accept Medicare assignment?
Yes. Dr. Rebecca Saff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rebecca Saff commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Test for allergy using skin patch (HCPCS 95044); Test for allergy using allergenic extract injected into skin (HCPCS 95024). Source: CMS Medicare Physician & Other Practitioners file.