NPPES file of Aug 9, 2026

Mark M. Prochnau, MSN, CRNA

Certified Registered Nurse Anesthetist · Clackamas, OR

Mark M. Prochnau, MSN, CRNA is a certified registered nurse anesthetist with a practice address in Clackamas, Oregon, and NPI 1164784310, issued on Jun 13, 2012. Check the license (Oregon 201260049CRNA, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1164784310
Name
Mark M. Prochnau
Credential
MSN, CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
201260049CRNA OR
201240512RN OR
Self-reported in NPPES; status is on the state search
Practice location
10180 SE Sunnyside RD, Clackamas, OR 97015
Phone
(503) 571-6386
Enumerated
Jun 13, 2012
Record last updated
Sep 26, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130604000883); accepts Medicare assignment
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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8 nearest certified registered nurse anesthetist records → All 568 in Oregon → Look up another NPI →

Also registered at 10180 SE Sunnyside RD

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

  1. Aaron Abajian, MDDiagnostic Radiology Physician1942732300
  2. Samer Abufadil, MDInternal Medicine Physician1750437653
  3. Jeremy Adler, M.D.Anatomic Pathology & Clinical Pathology Physician1548617483
  4. Alejandro Aguilar, PA-CPhysician Assistant1740940006
  5. Usman Ahmad, D.O.Internal Medicine Physician1326288697
  6. Hyun Jung AhnPhysical Therapist1245014703

Verify Mark M. Prochnau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 201260049CRNA    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
Find 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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Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestClackamas, OR

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

Mark M. Prochnau among 568 certified registered nurse anesthetist records in Oregon

Mark M. Prochnau, MSN, CRNA is one of 568 certified registered nurse anesthetist records with a practice address in Oregon. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.

  • NPI issued2012 · 55% of these records are older, 41% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2012 · median 2014 among the 384 with a school on file
  • Record last updated2012 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

86 certified registered nurse anesthetist records list a practice address in Clackamas

They are 86 of the 2,098 NPPES records with a practice address in Clackamas, and 568 certified registered nurse anesthetist records in Oregon.

All 568 in Oregon → Every provider in Clackamas → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Kenneth Allen, CRNA, MSAClackamas, OR 970151073627006
  2. Ethan Berry, MSN CRNAClackamas, OR 970151710094941
  3. Randy Cima, CRNAClackamas, OR 970151407874704
  4. Lynn Davis, CRNAClackamas, OR 970151295841740
  5. Jean Dougherty, CRNAClackamas, OR 970151134239924
  6. Lisa Frank, CRNAClackamas, OR 970151639282213
  7. Anita FrenchClackamas, OR 970151205863487
  8. Ryan Gingrich, CRNAClackamas, OR 970151437186004

Common questions

What is Mark M. Prochnau, MSN, CRNA's NPI number?

Mark M. Prochnau, MSN, CRNA's National Provider Identifier (NPI) is 1164784310, issued on Jun 13, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mark M. Prochnau, MSN, CRNA located?

The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 571-6386. Providers update this record themselves, so call before visiting.

How can I verify Mark M. Prochnau, MSN, CRNA's license?

NPPES lists Oregon license number 201260049CRNA, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.