Crystal Kyaw, MD
NPI 1770937591 · Surgery Physician · Boston, MA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Kyaw, MD is a Surgery Physician provider in Boston, MA (NPI 1770937591).
Provider details
- NPI number
- 1770937591
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 291798 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
432 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 141 | $76 |
| Critical Care, First 30-74 Minutes99291 | 126 | $218 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 73 | $51 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 40 | $132 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 30 | $84 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,349 across 17 records (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
Additional practice locations (1)
- 100 E 77th StNew York, NY 10075-1850Phone: (212) 434-2000
Registry dates
- Enumerated
- 2016-04-18
- Last updated
- 2023-09-21
- Certified
- 2023-09-21
Frequently asked questions
- What is Crystal Kyaw's NPI number?
- Crystal Kyaw's National Provider Identifier (NPI) is 1770937591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Kyaw's specialty?
- Crystal Kyaw is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal Kyaw located?
- Crystal Kyaw's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Crystal Kyaw's phone number?
- The practice phone number listed in the NPPES registry for Crystal Kyaw is (617) 525-9474.
- Does Crystal Kyaw accept Medicare?
- Crystal Kyaw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Kyaw's NPI active?
- Yes — Crystal Kyaw's NPI (1770937591) is active in the NPPES registry as of the last update on 2023-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.