NPPES file of Aug 9, 2026

Keith G. Lowenstein, MD

Psychiatry Physician · Portland, OR

Keith G. Lowenstein, MD is a psychiatry physician with a practice address in Portland, Oregon, and NPI 1679749980, issued on May 6, 2008. Check the license (Oregon 017648, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679749980
Name
Keith G. Lowenstein
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
017648 OR
MD17648 OR
Self-reported in NPPES; status is on the state search
Practice location
15160 NW Laidlaw RD Ste 240, Portland, OR 97229
Phone
(503) 601-7004
Enumerated
May 6, 2008
Record last updated
Apr 23, 2024
Fax
(503) 601-6876
Medicare enrollment
Enrolled (PECOS I20260210001290); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 1989
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Keith G. Lowenstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license 017648
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

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96% fewer Medicare Part D claims than the average psychiatry physician in 2024

42 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Keith Lowenstein42
  2. Specialty average1,000

Most prescribed

  1. Escitalopram Oxalate14 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.

Bills Medicare through one group practice

  1. Northwest IV LLCPortland, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Keith G. Lowenstein among 764 psychiatry physician records in Oregon

Keith G. Lowenstein, MD is one of 764 psychiatry physician records with a practice address in Oregon. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.

  • NPI issued2008 · 58% of these records are older, 37% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated1989 · median 2009 among the 300 with a school on file
  • Record last updated2024 · 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 2084P0800X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Oregon

There are 764 psychiatry physician records in Oregon.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Hadi Farah, M.D.Portland, OR 972291316367444
  2. William Hoppe, MDPortland, OR 972291003123852
  3. Cynthia Romero, M.D.Portland, OR 972291881734960
  4. Naomi Fishman, M.D.Portland, OR 972301891085437
  5. George FussellPortland, OR 972301902864952
  6. Grant Godbey, MDPortland, OR 972301902936594
  7. Gabriel Orenstein, DOPortland, OR 972301841759750
  8. Clara RuizPortland, OR 972301881829596

Common questions

What is Keith G. Lowenstein, MD's NPI number?

Keith G. Lowenstein, MD's National Provider Identifier (NPI) is 1679749980, issued on May 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Keith G. Lowenstein, MD located?

The NPPES record lists a practice address at 15160 NW Laidlaw RD Ste 240, Portland, OR, 97229. Phone: (503) 601-7004. Providers update this record themselves, so call before visiting.

How can I verify Keith G. Lowenstein, MD's license?

NPPES lists Oregon license number 017648, 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 Keith G. Lowenstein, MD prescribe under Medicare Part D?

In 2024, Keith G. Lowenstein, MD had 42 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.