Joanna Adamczak, M.D.
NPI 1447428420 · Maternal & Fetal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Adamczak, M.D. is a Maternal & Fetal Medicine Physician provider in San Diego, CA (NPI 1447428420).
Provider details
- NPI number
- 1447428420
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A116982 (CA)
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 tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-02-13
- Last updated
- 2011-12-09
Frequently asked questions
- What is Joanna Adamczak's NPI number?
- Joanna Adamczak's National Provider Identifier (NPI) is 1447428420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Adamczak's specialty?
- Joanna Adamczak is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Adamczak located?
- Joanna Adamczak's practice location on file with NPPES is 8010 Frost St, San Diego, CA 92123-2778.
- What is Joanna Adamczak's phone number?
- The practice phone number listed in the NPPES registry for Joanna Adamczak is (858) 939-6880.
- Does Joanna Adamczak accept Medicare?
- Joanna Adamczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Adamczak's NPI active?
- Yes — Joanna Adamczak's NPI (1447428420) is active in the NPPES registry as of the last update on 2011-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.