Mark Friedlander, M.D.
NPI 1447459847 · Psychiatry Physician · Narberth, PA
Mark Friedlander, M.D. is a Psychiatry Physician provider in Narberth, PA (NPI 1447459847).
Provider details
- NPI number
- 1447459847
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD040945L (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 tenure38% of score
18 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
- 2007-07-16
- Last updated
- 2007-07-16
Frequently asked questions
- What is Mark Friedlander's NPI number?
- Mark Friedlander's National Provider Identifier (NPI) is 1447459847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Friedlander's specialty?
- Mark Friedlander is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Friedlander located?
- Mark Friedlander's practice location on file with NPPES is 213 Elm Ter, Narberth, PA 19072-1601.
- What is Mark Friedlander's phone number?
- The practice phone number listed in the NPPES registry for Mark Friedlander is (610) 783-4135.
- Is Mark Friedlander's NPI active?
- Yes — Mark Friedlander's NPI (1447459847) is active in the NPPES registry as of the last update on 2007-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.