NPPES file of Aug 9, 2026

Bert Montgomery Stewart, MD

Surgery Physician · Ashland, OR

Bert Montgomery Stewart, MD is a surgery physician with a practice address in Ashland, Oregon, and NPI 1508965518, issued on Sep 22, 2006. Check the license (Oregon MD23395, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508965518
Name
Bert Montgomery Stewart
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
MD23395 OR
Self-reported in NPPES; status is on the state search
Practice location
1801 Highway 99 N, Ashland, OR 97520
Phone
(541) 488-4464
Enumerated
Sep 22, 2006
Record last updated
Oct 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(541) 488-3772
Medicare enrollment
Enrolled (PECOS I20040617001584); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1989
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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Also registered at 1801 Highway 99 N

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Zakir Ali, MDNeurology Physician1699727750
  2. William Gillock, MPTPhysical Therapist1255488995
  3. Wendy Schilling, MDInternal Medicine Physician1528047727

Verify Bert Montgomery Stewart in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD23395
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% more Medicare Part D claims than the average surgery physician in 2024

262 Medicare Part D claims for 99 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 67 claims were for opioids.

  1. Bert Stewart262
  2. Specialty average147

Most prescribed

  1. Hydrocodone-Acetaminophen47 claims
  2. Omeprazole38 claims
  3. Famotidine36 claims
  4. Sucralfate20 claims
  5. Metronidazole18 claims
  6. Oxycodone Hcl12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 92.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.2
  2. Costout of 100 · 30%97.3
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $125.20

5 payments; by number, the most common kind was food and beverage; the largest payer was Csl Behring. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Bert Stewart$125.20
  2. Specialty average$3,513.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Bear Creek Surgery PA, PCAshland, OR

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

Bert Montgomery Stewart among 524 surgery physician records in Oregon

Bert Montgomery Stewart, MD is one of 524 surgery 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, 53% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1989 · median 2005 among the 321 with a school on file
  • Record last updated2014 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Oregon

There are 524 surgery physician records in Oregon.

The 8 surgery physician records with the nearest ZIP codes

  1. Matthew Hiesterman, D.O.Ashland, OR 975201154642387
  2. Paul Hoffman, MDAshland, OR 975201770562977
  3. Cory Fawcett, M.D.Grants Pass, OR 975261467455774
  4. Melissa Greive, D.O.Grants Pass, OR 975261134567027
  5. Megan Frost, MDGrants Pass, OR 975271255533550
  6. Taranjeet Kaur, M.D.Grants Pass, OR 975271760725147
  7. Aaron Martin, DOGrants Pass, OR 975271932374808
  8. Richard Nelson, D.O.Grants Pass, OR 975271649499443

Common questions

What is Bert Montgomery Stewart, MD's NPI number?

Bert Montgomery Stewart, MD's National Provider Identifier (NPI) is 1508965518, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bert Montgomery Stewart, MD located?

The NPPES record lists a practice address at 1801 Highway 99 N, Ashland, OR, 97520. Phone: (541) 488-4464. Providers update this record themselves, so call before visiting.

How can I verify Bert Montgomery Stewart, MD's license?

NPPES lists Oregon license number MD23395, 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 Bert Montgomery Stewart, MD prescribe under Medicare Part D?

In 2024, Bert Montgomery Stewart, MD had 262 Medicare Part D claims for 99 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is Bert Montgomery Stewart, MD's MIPS final score?

The 2023 MIPS final score is 92.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.