Martin Athelstan Baggenstos, M.D.
Neurological Surgery Physician · Portland, OR
Martin Athelstan Baggenstos, M.D. is a neurological surgery physician with a practice address in Portland, Oregon, and NPI 1114153194, issued on Jun 4, 2009. Check the license (Oregon MD153961, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Martin Athelstan Baggenstos
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- MD153961 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9155 SW Barnes RD Ste 440, Portland, OR 97225
- Phone
- (503) 935-8500
- Enumerated
- Jun 4, 2009
- Record last updated
- Nov 22, 2023
- Fax
- (503) 935-8505
- Medicaid IDs
- 1114153194 WA
500635997 OR - Medicare enrollment
- Enrolled (PECOS I20110817000939); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 134 in Oregon → Look up another NPI →
Also registered at 9155 SW Barnes RD Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy AlbertsAcute Care Nurse Practitioner1336592468
- Krista Becker, PAPhysician Assistant1376176073
- Dayna Christison, RNFamily Nurse Practitioner1982978862
- Lorin Daniels, MSNAcute Care Nurse Practitioner1699466524
- Vivek Deshmukh, MDNeurological Surgery Physician1710922026
- Daniel EppelsheimerPhysician Assistant1689239618
Verify Martin Athelstan Baggenstos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD153961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average neurological surgery physician in 2024
50 Medicare Part D claims for 36 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Methylprednisolone25 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): 68.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,050.86
16 payments; by number, the most common kind was food and beverage; the largest payer was Alphatec Spine, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- The Oregon Clinic, PCPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Martin Athelstan Baggenstos among 134 neurological surgery physician records in Oregon
Martin Athelstan Baggenstos, M.D. is one of 134 neurological surgery physician records with a practice address in Oregon. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2004 · median 2007 among the 74 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Oregon
There are 134 neurological surgery physician records in Oregon.
All 134 in Oregon → Every provider in Portland → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Vivek Deshmukh, MDPortland, OR 972251710922026
- Pankaj Gore, MDPortland, OR 972251922288992
- Jeffrey Johnson, M.D.Portland, OR 972251457326647
- Donald Mulconrey, PA-CPortland, OR 972251265640833
- Jane Ng, M.B.B.S.Portland, OR 972251679886626
- Oisin O'Neill, MDPortland, OR 972251093701898
- Seth Oliveria, M.D., PH.D.Portland, OR 972251922310622
- Daniel Rohrer, M.D.Portland, OR 972251154390482
Common questions
What is Martin Athelstan Baggenstos, M.D.'s NPI number?
Martin Athelstan Baggenstos, M.D.'s National Provider Identifier (NPI) is 1114153194, issued on Jun 4, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Martin Athelstan Baggenstos, M.D. located?
The NPPES record lists a practice address at 9155 SW Barnes RD Ste 440, Portland, OR, 97225. Phone: (503) 935-8500. Providers update this record themselves, so call before visiting.
How can I verify Martin Athelstan Baggenstos, M.D.'s license?
NPPES lists Oregon license number MD153961, 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 Martin Athelstan Baggenstos, M.D. prescribe under Medicare Part D?
In 2024, Martin Athelstan Baggenstos, M.D. had 50 Medicare Part D claims for 36 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
What is Martin Athelstan Baggenstos, M.D.'s MIPS final score?
The 2023 MIPS final score is 68.5 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.