Stephen Sisselman, DO
NPI 1609948884 · Internal Medicine Physician · Massapequa, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Sisselman, DO is a Internal Medicine Physician provider in Massapequa, NY (NPI 1609948884).
Provider details
- NPI number
- 1609948884
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 216161 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
3,962 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 550 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 536 | $103 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 452 | $144 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 342 | $45 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 256 | $28 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 482 | 167 |
| Rosuvastatin Calcium | 235 | 93 |
| Amlodipine Besylate | 196 | 69 |
| Metformin Hcl | 187 | 62 |
| Losartan Potassium | 170 | 60 |
| Levothyroxine Sodium | 168 | 59 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,815 across 70 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
- 2006-11-14
- Last updated
- 2022-10-12
- Certified
- 2022-10-12
Frequently asked questions
- What is Stephen Sisselman's NPI number?
- Stephen Sisselman's National Provider Identifier (NPI) is 1609948884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Sisselman's specialty?
- Stephen Sisselman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Sisselman located?
- Stephen Sisselman's practice location on file with NPPES is 627 Broadway, Massapequa, NY 11758-5031.
- What is Stephen Sisselman's phone number?
- The practice phone number listed in the NPPES registry for Stephen Sisselman is (516) 308-4040.
- Does Stephen Sisselman accept Medicare?
- Stephen Sisselman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Sisselman's NPI active?
- Yes — Stephen Sisselman's NPI (1609948884) is active in the NPPES registry as of the last update on 2022-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.