Ruth Ann Lowengart, MD
Internal Medicine Physician · Medford, OR
Ruth Ann Lowengart, MD is an internal medicine physician with a practice address in Medford, Oregon, and NPI 1528009370, issued on Jun 10, 2006. Check the license (Oregon MD18869, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ruth Ann Lowengart
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD18869 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2627 Siskiyou Blvd, Medford, OR 97504
- Phone
- (541) 776-5111
- Enumerated
- Jun 10, 2006
- Record last updated
- Sep 11, 2025
- Medicaid ID
- 068655 OR
- Medicare enrollment
- Enrolled (PECOS I20050225000599); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Verify Ruth Ann Lowengart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD18869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,814 Medicare Part D claims for 123 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 1,070 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen353 claims
- Oxycodone Hcl285 claims
- Gabapentin223 claims
- Buprenorphine-Naloxone204 claims
- Morphine Sulfate Er200 claims
- Buprenorphine Hcl124 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Ruth Ann Lowengart among 2,116 internal medicine physician records in Oregon
Ruth Ann Lowengart, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1981 · median 2008 among the 1,232 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 internal medicine physician records list a practice address in Medford
They are 56 of the 4,542 NPPES records with a practice address in Medford, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Medford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Edward Cullen, MDMedford, OR 975041447257308
- Thomas Detweiler, M.D.Medford, OR 975041659310704
- Jon Gell, MDMedford, OR 975041982694873
- Patrick GilletteMedford, OR 975041578594008
- Andrean Gurov, MDMedford, OR 975041972551703
- Rebecca Hills, MDMedford, OR 975041942259833
- Susan Mackinnon, M.D.Medford, OR 975041104806140
- Kai Philipp Olshausen, MD, PHDMedford, OR 975041366487571
Common questions
What is Ruth Ann Lowengart, MD's NPI number?
Ruth Ann Lowengart, MD's National Provider Identifier (NPI) is 1528009370, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Ann Lowengart, MD located?
The NPPES record lists a practice address at 2627 Siskiyou Blvd, Medford, OR, 97504. Phone: (541) 776-5111. Providers update this record themselves, so call before visiting.
How can I verify Ruth Ann Lowengart, MD's license?
NPPES lists Oregon license number MD18869, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruth Ann Lowengart, MD prescribe under Medicare Part D?
In 2024, Ruth Ann Lowengart, MD had 2,814 Medicare Part D claims for 123 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.