Margaretha Markesteijn, PH.D.
NPI 1891052312 · Clinical Social Worker · Rochester, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaretha Markesteijn, PH.D. is a Clinical Social Worker provider in Rochester, NY (NPI 1891052312).
Provider details
- NPI number
- 1891052312
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 074704 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
Mailing address
Registry dates
- Enumerated
- 2012-04-20
- Last updated
- 2012-04-20
Frequently asked questions
- What is Margaretha Markesteijn's NPI number?
- Margaretha Markesteijn's National Provider Identifier (NPI) is 1891052312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaretha Markesteijn's specialty?
- Margaretha Markesteijn is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Margaretha Markesteijn located?
- Margaretha Markesteijn's practice location on file with NPPES is 595 Blossom Rd, Rochester, NY 14610-1825.
- What is Margaretha Markesteijn's phone number?
- The practice phone number listed in the NPPES registry for Margaretha Markesteijn is (585) 244-4335.
- Does Margaretha Markesteijn accept Medicare?
- Margaretha Markesteijn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaretha Markesteijn's NPI active?
- Yes — Margaretha Markesteijn's NPI (1891052312) is active in the NPPES registry as of the last update on 2012-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.