Active NPI
Sheridan Lindsay Messinger, MD
- General Practice Physician
- Oak Harbor, WA
National Provider Identifier
1568057313
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Physician
- License
- 34869
- Practice address
- 3475 N Saratoga St
Oak Harbor, WA 98278-5000 - Phone
- (360) 257-9500
- NPI assigned
- Mar 3, 2021
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| General Practice Physician | 208D00000X | 34869 | NE | Primary |
Addresses
Primary practice location
3475 N Saratoga St
Oak Harbor, WA 98278-5000
Mailing address
3475 N Saratoga St
Oak Harbor, WA 98278-4927
Phone (360) 257-9500
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 34869 | NE | MD | General Practice Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1614729600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786579200000",
"number": "1568057313",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3475 N SARATOGA ST",
"city": "OAK HARBOR",
"state": "WA",
"postal_code": "982784927",
"telephone_number": "360-257-9500"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3475 N SARATOGA ST",
"city": "OAK HARBOR",
"state": "WA",
"postal_code": "982785000",
"telephone_number": "360-257-9500"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MESSINGER",
"first_name": "SHERIDAN",
"middle_name": "LINDSAY",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-03-03",
"last_updated": "2026-08-13",
"certification_date": "2026-08-13",
"status": "A"
},
"taxonomies": [
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "NE",
"license": "34869",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Oak Harbor, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.