Sonia Friedman, MD
NPI 1841257169 · Gastroenterology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonia Friedman, MD is a Gastroenterology Physician provider in Boston, MA (NPI 1841257169).
Provider details
- NPI number
- 1841257169
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 160518 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
254 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 96 | $102 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 50 | $151 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $99 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 32 | $100 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 23 | $264 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 133 | 132 |
| Ustekinumabbrand: Stelara | 53 | — |
| Omeprazole | 51 | 18 |
| Mesalamine | 40 | 14 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 33 | 33 |
| Opium Tincture | 27 | — |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-28
- Last updated
- 2007-08-10
Frequently asked questions
- What is Sonia Friedman's NPI number?
- Sonia Friedman's National Provider Identifier (NPI) is 1841257169, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Friedman's specialty?
- Sonia Friedman is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Sonia Friedman located?
- Sonia Friedman's practice location on file with NPPES is 75 Francis Street, Boston, MA 02115.
- What is Sonia Friedman's phone number?
- The practice phone number listed in the NPPES registry for Sonia Friedman is (617) 732-6389.
- Does Sonia Friedman accept Medicare?
- Sonia Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonia Friedman's NPI active?
- Yes — Sonia Friedman's NPI (1841257169) is active in the NPPES registry as of the last update on 2007-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.