Stephen May, M.D.
NPI 1689850216 · Clinical Cardiac Electrophysiology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen May, M.D. is a Clinical Cardiac Electrophysiology Physician provider in San Antonio, TX (NPI 1689850216).
Provider details
- NPI number
- 1689850216
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 060123 (GA)
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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,521 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) |
|---|---|---|
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 1,134 | $23 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 614 | $23 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 599 | $28 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 343 | $14 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 | 252 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 122 | 42 |
| Metoprolol Succinate | 85 | 40 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 57 | 24 |
| Metoprolol Tartrate | 45 | 22 |
| Flecainide Acetate | 32 | 16 |
| Amiodarone Hcl | 32 | 16 |
| Dronedarone Hclbrand: Multaq |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$56 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
Registry dates
- Enumerated
- 2008-01-14
- Last updated
- 2012-10-01
Frequently asked questions
- What is Stephen May's NPI number?
- Stephen May's National Provider Identifier (NPI) is 1689850216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen May's specialty?
- Stephen May is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen May located?
- Stephen May's practice location on file with NPPES is 8715 Village Dr, San Antonio, TX 78217-5405.
- What is Stephen May's phone number?
- The practice phone number listed in the NPPES registry for Stephen May is (210) 590-7712.
- Does Stephen May accept Medicare?
- Stephen May is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen May's NPI active?
- Yes — Stephen May's NPI (1689850216) is active in the NPPES registry as of the last update on 2012-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.