IndividualActive
William Folberth, PSYD
NPI 1639640279 · Psychologist · New York, NY
William Folberth, PSYD is a Psychologist provider in New York, NY (NPI 1639640279).
Provider details
- NPI number
- 1639640279
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 021483 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
156 5th Ave Ste 1107
New York, NY 10010-7749
Phone: (646) 598-3889
Street-level locationGet directions
Mailing address
63 Wall St Apt 912
New York, NY 10005-3008
Registry dates
- Enumerated
- 2018-12-07
- Last updated
- 2018-12-07
Frequently asked questions
- What is William Folberth's NPI number?
- William Folberth's National Provider Identifier (NPI) is 1639640279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Folberth's specialty?
- William Folberth is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is William Folberth located?
- William Folberth's practice location on file with NPPES is 156 5th Ave Ste 1107, New York, NY 10010-7749.
- What is William Folberth's phone number?
- The practice phone number listed in the NPPES registry for William Folberth is (646) 598-3889.
- Is William Folberth's NPI active?
- Yes — William Folberth's NPI (1639640279) is active in the NPPES registry as of the last update on 2018-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.