Gloria Shan, M.D.
NPI 1669891446 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gloria Shan, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1669891446).
Provider details
- NPI number
- 1669891446
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 58572 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
651 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 240 | $54 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 138 | $128 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 130 | $86 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 91 | $89 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 27 | $125 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
Practice location
Mailing address
Additional practice locations (1)
- 1400 Jackson StDenver, CO 80206-2761Phone: (303) 388-4461Fax: (303) 270-2206
Registry dates
- Enumerated
- 2014-04-09
- Last updated
- 2023-05-11
- Certified
- 2023-05-11
Frequently asked questions
- What is Gloria Shan's NPI number?
- Gloria Shan's National Provider Identifier (NPI) is 1669891446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gloria Shan's specialty?
- Gloria Shan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gloria Shan located?
- Gloria Shan's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Gloria Shan's phone number?
- The practice phone number listed in the NPPES registry for Gloria Shan is (617) 732-5500.
- Does Gloria Shan accept Medicare?
- Gloria Shan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gloria Shan's NPI active?
- Yes — Gloria Shan's NPI (1669891446) is active in the NPPES registry as of the last update on 2023-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.