Sandra Christiansen, M.D.
NPI 1225399421 · Obstetrics & Gynecology Physician · Frederick, MD
Sandra Christiansen, M.D. is a Obstetrics & Gynecology Physician provider in Frederick, MD (NPI 1225399421).
Provider details
- NPI number
- 1225399421
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0045817 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2012-06-04
- Last updated
- 2012-06-04
Frequently asked questions
- What is Sandra Christiansen's NPI number?
- Sandra Christiansen's National Provider Identifier (NPI) is 1225399421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Christiansen's specialty?
- Sandra Christiansen is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Sandra Christiansen located?
- Sandra Christiansen's practice location on file with NPPES is 707 N Market St, Frederick, MD 21701-5246.
- What is Sandra Christiansen's phone number?
- The practice phone number listed in the NPPES registry for Sandra Christiansen is (301) 662-5300.
- Is Sandra Christiansen's NPI active?
- Yes — Sandra Christiansen's NPI (1225399421) is active in the NPPES registry as of the last update on 2012-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.