Peter S Hein, MD
Family Medicine · Castro Valley, CA
At a glance
20101 Lake Chabot Rd, Castro Valley, CA 94546-5305
NPPES record updated Jul 1, 2021. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
20101 Lake Chabot RdCastro Valley, CA 94546-5305
Additional reported practice locations
4053 Lone Tree WayAntioch, CA 945316210
Phone: 9257563499 391 N San Jacinto St
Hemet, CA 925433118
Phone: 9519296003
Fax: 9519299678 12 Camino Encinas
Orinda, CA 945633304
Phone: 5102048075
Fax: 9252540687 2500 Milvia St
Berkeley, CA 947042636
Phone: 5102045514
Fax: 5102045515
Education & affiliations
No matching clinician background record in the imported CMS release.
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $17.32 |
Reporting companies
| Company | Amount |
|---|---|
| ASTRAZENECA PHARMACEUTICALS LP | $17.32 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Family Medicine
- Taxonomy code
- 207Q00000X
- Enumeration date
- Jan 8, 2007
- Record updated
- Jul 1, 2021
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207Q00000X · Primary
License reported: G46896 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
20101 Lake Chabot RdCastro Valley, CA 94546-5305
- Phone
- (510) 247-6300
- Fax
- (510) 247-6303
Mailing address
15237 ELEVENTH STSTE C
VICTORVILLE, CA 923953736
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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