Erin Joy Helgerson, M.D.
Family Medicine · Petaluma, CA
At a glance
1179 N Mcdowell Blvd, Petaluma, CA 94954-6559
NPPES record updated Sep 20, 2019. 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
1179 N Mcdowell BlvdPetaluma, CA 94954-6559
Additional reported practice locations
1300 E 23Rd StChattanooga, TN 374045701
Phone: 4237604000
Fax: 4237604051
Education & affiliations
- Medical / professional school
- Indiana University School Of Medicine
- Graduation year
- 2010
- CMS specialties
- Family Practice
Practice groups
Reported hospital affiliations
- Petaluma Valley Hospital Petaluma, CA
- Providence Santa Rosa Memorial Hospital Santa Rosa, CA
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.
Source: CMS Facility Affiliation Data · 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.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
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
- Aug 9, 2011
- Record updated
- Sep 20, 2019
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207Q00000X · Primary
License reported: A117804 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1179 N Mcdowell BlvdPetaluma, CA 94954-6559
- Phone
- (707) 559-7500
- Fax
- (707) 559-7620
Mailing address
1179 N MCDOWELL BLVDPETALUMA, CA 949546559
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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