Douglas Armstrong Ackerman, M.D.
Urology Physician · Clackamas, OR
Douglas Armstrong Ackerman, M.D. is a urology physician with a practice address in Clackamas, Oregon, and NPI 1174636344, issued on Aug 15, 2006. Check the license (Oregon MD16033, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Douglas Armstrong Ackerman
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- MD16033 OR
MD00034742 WA
Self-reported in NPPES; status is on the state search - Practice location
- 9900 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 652-2880
- Enumerated
- Aug 15, 2006
- Record last updated
- Feb 4, 2022
- Entity
- Type 1 · individual
8 nearest urology physician records → All 188 in Oregon → Look up another NPI →
Also registered at 9900 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamran Aghaie, MDGastroenterology Physician1104056936
- Joshua Armagost, RNRegistered Nurse First Assistant1558513135
- Jeffrey Barton, M.D.Colon & Rectal Surgery Physician1295988350
- Tracy Barton, RPHPharmacist1265804421
- Natalie Baxter, PA-CMedical Physician Assistant1265675599
- Aaron Bayne, M.D.Pediatric Urology Physician1578779492
Verify Douglas Armstrong Ackerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD16033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average urology physician in 2024
487 Medicare Part D claims for 219 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
Most prescribed
- Finasteride136 claims
- Tamsulosin Hcl121 claims
- Trospium Chloride25 claims
- Oxybutynin Chloride24 claims
- Oxybutynin Chloride Er21 claims
- Terazosin Hcl20 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.
Douglas Armstrong Ackerman among 188 urology physician records in Oregon
Douglas Armstrong Ackerman, M.D. is one of 188 urology physician records with a practice address in Oregon. 79% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Oregon
There are 188 urology physician records in Oregon.
All 188 in Oregon → Every provider in Clackamas → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Paramjit Chandhoke, M.D.Clackamas, OR 970151568578029
- Matthew Forsyth, MDClackamas, OR 970151598778060
- Kyle Gillis, MDClackamas, OR 970151932594504
- Jeffrey Johnson, M.D.Clackamas, OR 970151659487692
- Stephen Lieberman, M.D.Clackamas, OR 970151841306925
- Leanna Mah, M.D.Clackamas, OR 970151649682592
- Stephen ProctorClackamas, OR 970151487009163
- Geoffrey Rosen, MDClackamas, OR 970151679066823
Common questions
What is Douglas Armstrong Ackerman, M.D.'s NPI number?
Douglas Armstrong Ackerman, M.D.'s National Provider Identifier (NPI) is 1174636344, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Armstrong Ackerman, M.D. located?
The NPPES record lists a practice address at 9900 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 652-2880. Providers update this record themselves, so call before visiting.
How can I verify Douglas Armstrong Ackerman, M.D.'s license?
NPPES lists Oregon license number MD16033, 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 Douglas Armstrong Ackerman, M.D. prescribe under Medicare Part D?
In 2024, Douglas Armstrong Ackerman, M.D. had 487 Medicare Part D claims for 219 beneficiaries; the average among urology physician prescribers was 1,340. 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.