IndividualActive
Joanna Hahn
NPI 1669920815 · Family Nurse Practitioner · Concord, CA
Provider details
- NPI number
- 1669920815
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 9274113 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
2280 Diamond Blvd Ste 520
Concord, CA 94520-5719
Phone: (925) 682-1951
Street-level locationGet directions
Mailing address
1924 Shasta Ln
Hercules, CA 94547-2756
Additional practice locations (2)
- 5757 Plaza DrCypress, CA 90630-5000Phone: (888) 445-8745
- 7500 4th St NSt Petersburg, FL 33702-5400Phone: (727) 526-4122
Registry dates
- Enumerated
- 2016-09-16
- Last updated
- 2021-05-19
- Certified
- 2021-05-19
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.