Peter Adamczyk, M.D.
NPI 1689710915 · Neurology Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Adamczyk, M.D. is a Neurology Physician provider in Castro Valley, CA (NPI 1689710915).
Provider details
- NPI number
- 1689710915
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A98461 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
444 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 91 | $87 |
| Insertion of Tube Into Internal Neck Artery for Diagnosis Or Treatment With Review By Radiologist36224 | 68 | $401 |
| Insertion of Tube Into Brain Artery for Diagnosis Or Treatment With Review By Radiologist36226 | 66 | $335 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 64 | $192 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $90 |
| Insertion of Tube Into External Neck Artery for Diagnosis Or Treatment With Review By Radiologist36227 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$377 across 9 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
- 2007-01-30
- Last updated
- 2013-08-28
Frequently asked questions
- What is Peter Adamczyk's NPI number?
- Peter Adamczyk's National Provider Identifier (NPI) is 1689710915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Adamczyk's specialty?
- Peter Adamczyk is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Adamczyk located?
- Peter Adamczyk's practice location on file with NPPES is 20055 Lake Chabot Rd, Castro Valley, CA 94546-5331.
- What is Peter Adamczyk's phone number?
- The practice phone number listed in the NPPES registry for Peter Adamczyk is (510) 538-7738.
- Does Peter Adamczyk accept Medicare?
- Peter Adamczyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Adamczyk's NPI active?
- Yes — Peter Adamczyk's NPI (1689710915) is active in the NPPES registry as of the last update on 2013-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.