Lindsey Semprini, M.D.
NPI 1639529696 · Internal Medicine Physician · Riverhead, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lindsey Semprini, M.D. is a Internal Medicine Physician provider in Riverhead, NY (NPI 1639529696).
Provider details
- NPI number
- 1639529696
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MT212106 (PA)
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
811 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 297 | $89 |
| Advance Care Planning, First 30 Minutes99497 | 199 | $85 |
| Advance Care Planning, Each Additional 30 Minutes99498 | 137 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 100 | $134 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 41 | $196 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 37 |
Practice location
Mailing address
Additional practice locations (1)
- 245 N 15th St Fl 6Philadelphia, PA 19102Phone: (215) 762-7000Fax: (215) 762-7765
Registry dates
- Enumerated
- 2016-06-20
- Last updated
- 2020-10-02
- Certified
- 2020-10-02
Frequently asked questions
- What is Lindsey Semprini's NPI number?
- Lindsey Semprini's National Provider Identifier (NPI) is 1639529696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lindsey Semprini's specialty?
- Lindsey Semprini is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lindsey Semprini located?
- Lindsey Semprini's practice location on file with NPPES is 1300 Roanoke Ave, Riverhead, NY 11901-2031.
- What is Lindsey Semprini's phone number?
- The practice phone number listed in the NPPES registry for Lindsey Semprini is (631) 548-6176.
- Does Lindsey Semprini accept Medicare?
- Lindsey Semprini is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lindsey Semprini's NPI active?
- Yes — Lindsey Semprini's NPI (1639529696) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.