Doctor profile · Federal record

Dr. Katharine Germansky, M.D.

Gastroenterology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Boston, MA

  • NPI 1568781540
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
110 Francis St, Suite 8E
Boston, MA 022155501
(617) 632-8623
fax (617) 632-9199

Credentials & registration

NPPES · NUCC
NPI registered
May 2010 — 16 yrs on file
Profile last updated
February 6, 2017
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Massachusetts #258929 · Massachusetts #244023

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568781540. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
313
Distinct HCPCS
8
Medicare allowed
$41,608
HCPCS Description Services Patients Avg allowed
45380 Biopsy of large bowel using a flexible endoscope 70 68 $88
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 62 60 $265
99214 Established patient office or other outpatient visit, 30-39 minutes 59 55 $104
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 37 36 $138
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 32 29 $109
99214 Established patient office or other outpatient visit, 30-39 minutes 21 20 $104
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 19 16 $6
99215 Established patient office or other outpatient visit, 40-54 minutes 13 13 $153

In context: peer comparison

Among 78 peers in this city , average services per provider: 56. This provider delivers 5.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$54
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Phathom Pharmaceuticals, Inc. 1 $29.36
GENZYME CORPORATION 1 $24.46

By nature of payment

Food and Beverage
$54

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
406
Patients
172
Total drug cost
$1,443,750
Drug Type Claims Patients Total cost
Omeprazole Generic 106 47 $2,799
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 84 84 $7,766
Pantoprazole Sodium Generic 61 20 $1,905
Stelara (Ustekinumab) Brand 36 0 $1,076,580
Mesalamine Generic 32 0 $29,900
Linzess (Linaclotide) Brand 24 0 $18,120
Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) Brand 22 21 $4,885
Humira(Cf) Pen (Adalimumab) Brand 21 0 $301,463
Famotidine Generic 20 0 $333

Frequently asked questions

Auto-generated from federal data
What is Dr. Katharine Germansky's medical specialty?
Dr. Katharine Germansky practices Gastroenterology Physician in Boston, MA.
Where does Dr. Katharine Germansky practice?
Dr. Katharine Germansky practices at 110 Francis St, Boston, MA 022155501. Office phone: 6176328623.
What is Dr. Katharine Germansky's NPI?
Dr. Katharine Germansky's National Provider Identifier (NPI) is 1568781540, issued by NPPES.
Does Dr. Katharine Germansky accept Medicare assignment?
Yes. Dr. Katharine Germansky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katharine Germansky commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.