OrganizationActive
Karen Nielsen, D.O.
NPI 1194993808 · Clinic/Center · Narberth, PA
Karen Nielsen, D.O. is a Clinic/Center organization in Narberth, PA (NPI 1194993808).
Provider details
- NPI number
- 1194993808
- Entity type
- Organization
- Primary specialty
- Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Karen Nielsen, Physician(215) 253-7263
- License
- OS014231 (PA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Detailed profile(88/100 index)
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
822 Montgomery Ave
Suite 315
Narberth, PA 19072-1937
Phone: (610) 667-4601
Fax: (610) 667-6416
Street-level locationGet directions
Mailing address
91 E 4th St
New York, NY 10003-9000
Registry dates
- Enumerated
- 2008-02-15
- Last updated
- 2008-09-25
Frequently asked questions
- What is Karen Nielsen, D.O.'s NPI number?
- Karen Nielsen, D.O.'s National Provider Identifier (NPI) is 1194993808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Karen Nielsen, D.O.?
- Karen Nielsen, D.O. is classified in the NPPES registry as Clinic/Center (Ambulatory Health Care Facilities).
- Where is Karen Nielsen, D.O. located?
- Karen Nielsen, D.O.'s practice location on file with NPPES is 822 Montgomery Ave, Narberth, PA 19072-1937.
- What is Karen Nielsen, D.O.'s phone number?
- The practice phone number listed in the NPPES registry for Karen Nielsen, D.O. is (610) 667-4601.
- Who is the authorized official for Karen Nielsen, D.O.?
- The authorized official listed on Karen Nielsen, D.O.'s NPPES record is Karen Nielsen, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Karen Nielsen, D.O.'s NPI active?
- Yes — Karen Nielsen, D.O.'s NPI (1194993808) is active in the NPPES registry as of the last update on 2008-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.