Sway Chen, MD, PHD
NPI 1699302166 · Gastroenterology Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sway Chen, MD, PHD is a Gastroenterology Physician provider in Boston, MA (NPI 1699302166).
Provider details
- NPI number
- 1699302166
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 1027191 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 43 | 16 |
| Linaclotidebrand: Linzess | 13 | — |
| Lipase/Protease/Amylasebrand: Creon | 12 | — |
| Methotrexate/Pfbrand: Rasuvo | 12 | — |
| Rifaximinbrand: Xifaxan | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 15 Parkman St # 5Boston, MA 02114-3117Phone: (617) 726-2426Fax: (617) 724-5997
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2026-06-05
- Certified
- 2026-06-05
Frequently asked questions
- What is Sway Chen's NPI number?
- Sway Chen's National Provider Identifier (NPI) is 1699302166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sway Chen's specialty?
- Sway Chen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Sway Chen located?
- Sway Chen's practice location on file with NPPES is 55 Fruit St., Boston, MA 02114.
- What is Sway Chen's phone number?
- The practice phone number listed in the NPPES registry for Sway Chen is (617) 726-2000.
- Does Sway Chen accept Medicare?
- Sway Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sway Chen's NPI active?
- Yes — Sway Chen's NPI (1699302166) is active in the NPPES registry as of the last update on 2026-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.