Mary So, MD
NPI 1336431683 · Anesthesiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary So, MD is a Anesthesiology Physician provider in New York, NY (NPI 1336431683).
Provider details
- NPI number
- 1336431683
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 280663 (NY)
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 tenure25% of score
15 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
117 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 34 | $84 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 28 | $93 |
| Anesthesia for Lens Surgery00142 | 22 | $78 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 20 | $104 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 13 | $67 |
Typical Medicare-allowed amounts for these services range $67–$104 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 2 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)
- 525 E 68th StM312New York, NY 10065-4870Phone: (212) 746-2941Fax: (212) 746-8713
Registry dates
- Enumerated
- 2011-05-04
- Last updated
- 2024-12-21
- Certified
- 2024-12-21
Frequently asked questions
- What is Mary So's NPI number?
- Mary So's National Provider Identifier (NPI) is 1336431683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary So's specialty?
- Mary So is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary So located?
- Mary So's practice location on file with NPPES is 525 E 68th St, New York, NY 10065-4870.
- What is Mary So's phone number?
- The practice phone number listed in the NPPES registry for Mary So is (212) 746-2941.
- Does Mary So accept Medicare?
- Mary So is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary So's NPI active?
- Yes — Mary So's NPI (1336431683) is active in the NPPES registry as of the last update on 2024-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.