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Frederick Siegal, MD
NPI 1801980099 · Internal Medicine Physician · New York, NY
Frederick Siegal, MD is a Internal Medicine Physician provider in New York, NY (NPI 1801980099).
Provider details
- NPI number
- 1801980099
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 097973 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
36 Seventh Avenue, Suite 512
Mount Sinai Downtown
New York, NY 10011
Phone: (212) 604-6513
Fax: (212) 604-6579
Street-level locationGet directions
Mailing address
36 Seventh Avenue, Suite 512
New York, NY 10011
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2010-08-11
Frequently asked questions
- What is Frederick Siegal's NPI number?
- Frederick Siegal's National Provider Identifier (NPI) is 1801980099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Siegal's specialty?
- Frederick Siegal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Siegal located?
- Frederick Siegal's practice location on file with NPPES is 36 Seventh Avenue, Suite 512, New York, NY 10011.
- What is Frederick Siegal's phone number?
- The practice phone number listed in the NPPES registry for Frederick Siegal is (212) 604-6513.
- Is Frederick Siegal's NPI active?
- Yes — Frederick Siegal's NPI (1801980099) is active in the NPPES registry as of the last update on 2010-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.