Marisa Siebel, M.D.
NPI 1942303094 · Medical Oncology Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marisa Siebel, M.D. is a Medical Oncology Physician provider in New Hyde Park, NY (NPI 1942303094).
Provider details
- NPI number
- 1942303094
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 240929 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,413 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 471 | $18 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 410 | $158 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 120 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 116 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 110 | $192 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-06
- Last updated
- 2016-09-14
Frequently asked questions
- What is Marisa Siebel's NPI number?
- Marisa Siebel's National Provider Identifier (NPI) is 1942303094, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marisa Siebel's specialty?
- Marisa Siebel is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marisa Siebel located?
- Marisa Siebel's practice location on file with NPPES is 450 Lakeville Rd, New Hyde Park, NY 11042-1118.
- What is Marisa Siebel's phone number?
- The practice phone number listed in the NPPES registry for Marisa Siebel is (516) 734-7671.
- Does Marisa Siebel accept Medicare?
- Marisa Siebel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marisa Siebel's NPI active?
- Yes — Marisa Siebel's NPI (1942303094) is active in the NPPES registry as of the last update on 2016-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.