Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MATTHEW PETERSEN DO
NPI 1396206397
Internal Medicine - Cardiovascular Disease in San Luis Obispo, CA

Q: What is Matthew Petersen's NPI number?

The NPI number for Matthew Petersen is 1396206397. It was assigned to this individual provider in the NPPES registry on March 31, 2019.

Q: What is Matthew Petersen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Petersen was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 31, 2019PECOS Enrolled

1941 JOHNSON AVE STE 101, SAN LUIS OBISPO, CA 93401(805) 782-8844(805) 549-6985 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 14, 2026, May 18, 2026, Jul 29, 2022 (3 updates tracked since 2022).

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About Dr. Matthew Petersen Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MATTHEW PETERSEN DO (NPI 1396206397) is an individual cardiovascular disease provider in San Luis Obispo, California, licensed in California (20A24105) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1396206397

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. MATTHEW PETERSENCredential: DO

Location Address1941 JOHNSON AVE STE 101San Luis Obispo, CA 93401-4154

Mailing Address1941 Johnson Ave Ste 101San Luis Obispo, CA 93401-4154 · (805) 872-8844

Phone(805) 782-8844

Fax(805) 549-6985

Sole ProprietorNo

Enumeration DateMarch 31, 2019

Last NPPES UpdateJuly 14, 20263 updates tracked since enumeration

NPPES CertifiedJuly 14, 2026

✔ NPI 1396206397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CA · 20A24105

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedHospitalistTaxonomy 208M00000X · License 18980 (FL)

1941 JOHNSON AVE STE 101, San Luis Obispo, CA 93401

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Secondary Practice Locations 4

Location 11601 SW Archer Rd Ste 4102Gainesville, FL 32608-1135 · Phone (352) 352-1611 · Fax (352) 265-1107

Location 2850 Fair Oaks Ave Ste 100Arroyo Grande, CA 93420-3929 · Phone (805) 782-8844 · Fax (805) 549-6988

Location 3295 Posada Ln Ste ATempleton, CA 93465-4055 · Phone (805) 782-8844 · Fax (805) 549-6987

Location 41941 Johnson Ave Ste 102San Luis Obispo, CA 93401-4174 · Phone (805) 782-8844 · Fax (805) 549-6986

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew Petersen Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$135.73 typical visit price

range $59.84 – $178.89

Typical copayment $33.93 (range $14.96 – $44.72)

Most-billed visit code 99204

Established Patient

$74.24 typical visit price

range $19.70 – $146.55

Typical copayment $18.56 (range $4.92 – $36.63)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KELLAN KALBAUGH PA-C

Physician Assistant (Medical)