Louis May, M.D.
NPI 1164426987 · Gastroenterology Physician · New City, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis May, M.D. is a Gastroenterology Physician provider in New City, NY (NPI 1164426987).
Provider details
- NPI number
- 1164426987
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 042.0018332 (VT)
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
21 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
1,082 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 | 178 | $140 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 161 | $83 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 93 | $392 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 92 | $183 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 87 | $458 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 485 | 170 |
| Omeprazole | 358 | 116 |
| Pantoprazole Sodium | 112 | 37 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 55 | 55 |
| Metronidazole | 48 | 47 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 46 | 45 |
| Linaclotidebrand: Linzess | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$551 across 32 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)
- 528 Washington HwyMorrisville, VT 05661-8973Phone: (802) 888-8888Fax: (802) 888-8131
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2025-08-20
- Certified
- 2025-08-19
Frequently asked questions
- What is Louis May's NPI number?
- Louis May's National Provider Identifier (NPI) is 1164426987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis May's specialty?
- Louis May is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis May located?
- Louis May's practice location on file with NPPES is 500 New Hempstead Rd, New City, NY 10956-1132.
- What is Louis May's phone number?
- The practice phone number listed in the NPPES registry for Louis May is (845) 362-3200.
- Does Louis May accept Medicare?
- Louis May is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis May's NPI active?
- Yes — Louis May's NPI (1164426987) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.