Michael Stephen Petersen
Peer Specialist · Concord, CA
Michael Stephen Petersen is a peer specialist with a practice address in Concord, California, and NPI 1871257535, issued on Oct 28, 2021. Check the license (California MPSS-DWMIVN, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael Stephen Petersen
- Primary taxonomy
- Peer Specialist 175T00000X
- License number
- MPSS-DWMIVN CA
Self-reported in NPPES; status is on the state search - Practice location
- 2425 Bisso LN Ste 100, Concord, CA 94520
- Phone
- (925) 500-3093
- Enumerated
- Oct 28, 2021
- Record last updated
- May 1, 2025
- Entity
- Type 1 · individual
8 nearest peer specialist records → All 4,528 in California → Look up another NPI →
Also registered at 2425 Bisso LN Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Stephen Petersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license MPSS-DWMIVNCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael Stephen Petersen among 4,528 peer specialist records in California
Michael Stephen Petersen is one of 4,528 peer specialist records with a practice address in California. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2021, is newer than 29% of them.
- NPI issued2021 · 29% of these records are older, 64% newer
- In a Medicare fileNo · 0% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2025 · 15% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Peer Specialist providers in California
There are 4,528 peer specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4,528 in California → Every provider in Concord → Peer Specialist nationwide →
The 8 peer specialist records with the nearest ZIP codes
- Mariela AcostaConcord, CA 945201831823509
- Sara BauderConcord, CA 945201760990782
- Shelby BellConcord, CA 945201538713797
- Cristina CannavinoConcord, CA 945201962944736
- Cameron ContrerasConcord, CA 945201285299669
- Linda DunnConcord, CA 945201073094066
- Clementine HinesConcord, CA 945201982062360
- Colleen QuickConcord, CA 945201508295361
Common questions
What is Michael Stephen Petersen's NPI number?
Michael Stephen Petersen's National Provider Identifier (NPI) is 1871257535, issued on Oct 28, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Michael Stephen Petersen located?
The NPPES record lists a practice address at 2425 Bisso LN Ste 100, Concord, CA, 94520. Phone: (925) 500-3093. Providers update this record themselves, so call before visiting.
How can I verify Michael Stephen Petersen's license?
NPPES lists California license number MPSS-DWMIVN, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.