Individual provider

Timothy Stewart, MD

Obstetrics & Gynecology Physician Medicare enrolled

Timothy Stewart, MD is an Obstetrics & Gynecology Physician in Hillsboro, OR, registered under NPI 1669455952.

Getting there

The practice address on file is 364 SE 8TH AVE STE 205, Hillsboro, OR 97123. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

364 SE 8TH AVE STE 205, Hillsboro, OR 97123 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
MD14489 OR Obstetrics & Gynecology Physician primary

This provider holds licence MD14489 issued in OR. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Obstetrics/gynecology
PAC ID
7719170745
Enrollment ID
I20101021001130

Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Obstetrics & Gynecology covers

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
Allopathic & Osteopathic Physicians Obstetrics & Gynecology

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1669455952 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 21, 2005
Last updatedMay 14, 2021
StatusActive
Sole proprietorNo
CredentialMD
Practice address 364 SE 8TH AVE STE 205
Hillsboro, OR 97123
(503) 681-4145
Fax (503) 681-4146
Mailing address 12215 NW LAIDLAW RD
Portland, OR 97229
Other identifiers R106585 · Other (OR)
213660 · Medicaid (OR)
The last update on file is May 14, 2021. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1669455952 passes the NPI check digit test The final digit 2 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 6 9 4 5 5 9 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 3 9 8 5 1 9 1

Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1669455952?
NPI 1669455952 is the National Provider Identifier assigned to Timothy Stewart, MD in Hillsboro, OR. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Obstetrics & Gynecology Physician cover?
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
How do I contact Timothy Stewart, MD?
The phone number on file with NPPES is (503) 681-4145, last updated May 14, 2021. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Timothy Stewart, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1669455952 a valid number?
Yes. 1669455952 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.