Dr. Gilbert Perkins Klemann, MD
- Medicare services, 2024
- 1,750
- Medicare patients, 2024
- 396
- Part D claims, 2024
- 1,400
- MIPS score, 2024
- 91
- Hospital affiliations
- 5
- Practice address
- 5050 NE Hoyt Street, Suite 156, Portland, OR 97213
- Practice phone
- Call (971) 229-8100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Plaza Ambulatory Surgery Center - Portland
Surgery Center - Medicare-Certified · Portland, Oregon
Find Dr. Klemann's professional email, personal email and mobile number
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Dr. Gilbert Perkins Klemann is a urologist in Portland, Oregon
Dr. Klemann practices at Plaza Ambulatory Surgery Center - Portland in Portland, Oregon.
Dr. Klemann's NPI, 1679629927, was assigned on January 26, 2007. Dr. Klemann graduated from Emory University School of Medicine in 2002. Dr. Klemann holds Oregon license MD27214.
- NPI
- 1679629927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032212469
- NPI enumeration date
- January 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (971) 229-8100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gilbert Perkins Klemann practices at Plaza Ambulatory Surgery Center - Portland in Portland, Oregon
Dr. Klemann's primary practice is Plaza Ambulatory Surgery Center - Portland, at 5050 NE Hoyt Street, Suite 156, Portland, OR 97213. The practice phone is (971) 229-8100.
- Plaza Ambulatory Surgery Center - Portland5050 NE Hoyt Street, Suite 156, Portland, OR 97213Phone(971) 229-8100
Source: Dmand AI Affiliation Data
Dr. Gilbert Perkins Klemann is affiliated with 8 sites of care and 3 medical groups
Dr. Klemann's primary practice is Plaza Ambulatory Surgery Center - Portland in Portland, Oregon. Dr. Klemann is also affiliated with Providence St. Vincent Medical Center. The medical group on file is The Oregon Clinic. Dmand AI also links Dr. Klemann to 4 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gilbert Perkins Klemann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klemann practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Plaza Ambulatory Surgery Center - Portland | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gilbert Perkins Klemann is one of 164 urologists in Oregon
Urology is Dr. Klemann's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Klemann is licensed in Oregon.
Specialties and state licenses
- Urology, OregonPrimary
Urologists near Dr. Klemann
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gilbert Perkins Klemann billed Medicare for 1,750 services in 2024
CMS data shows 1,750 Medicare services from Dr. Klemann across 16 procedure codes in 2024, for 396 Medicare patients. Medicare paid $57,419 for them.
Dr. Klemann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 950
- Office and hospital visits
- 2023: 3572024: 39110%
- Surgery
- 2023: 4112024: 33518%
- Lab and pathology
- 2023: 282024: 3836%
- Imaging
- 2023: 282024: 3629%
Where Dr. Klemann's Medicare services took place, 2024
- In an office1,71598%
- In a facility352%
Dr. Klemann compared with the Oregon median for urologists, 2024
- Dr. Klemann
- Oregon median
- Medicare services
- 1,750vs 89396% above
- Medicare patients
- 396vs 28638% above
- Part D claims
- 1,276vs 65894% above
Medians across 163 urologists in Oregon with Dmand AI profiles that report each measure.
Dr. Klemann's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klemann and other urologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gilbert Perkins Klemann treated 396 Medicare patients in 2024, average age 75
CMS counts 396 Medicare patients who saw Dr. Klemann in 2024. The largest group is 65 to 74, with 185 patients. 71% of them have high blood pressure, and 66% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Klemann's median patient age at 72, with 18% women.
Dr. Klemann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Klemann's Medicare patients by sex, 2024
- Women6216%
- Men33484%
Chronic conditions among Dr. Klemann's Medicare patients, 2024
- High blood pressure71%
- High cholesterol66%
- Arthritis38%
- Chronic kidney disease29%
- Cancer28%
- Diabetes27%
- Ischemic heart disease24%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klemann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women18%
- Men81%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gilbert Perkins Klemann wrote 1,400 Medicare Part D claims in 2024
In 2024, Dr. Klemann wrote 1,400 Medicare Part D claims for 432 patients. 85% of them were for generic drugs. CMS names the drug for 1,276 of them, across 13 drugs with 11 or more claims each, at $192,963 in total drug cost. In 2023, CMS named 1,211 claims across 11 drugs.
Dr. Klemann's Part D claims by kind of drug, 2024
- Generic1,192 claims85%
- Brand-name208 claims15%
Dr. Klemann's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Klemann's Part D claims, 2024
- Opioids9%119 of 1,400 claims
- Antibiotics15%211 of 1,400 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2112024: 1,2765%
Drugs named by CMS: 13 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gilbert Perkins Klemann scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Klemann for performance year 2024, reported individually. Dr. Klemann accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Klemann's MIPS scores, performance year 2024
- 91of 100Final score
- 77.2of 100Quality
- 91of 100Promoting Interoperability
- 40of 100Improvement Activities
- 100of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gilbert Perkins Klemann received $4,059 in industry payments from 2016 to 2025
CMS Open Payments shows 213 general payments to Dr. Klemann from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $592.
General payments to Dr. Klemann by program year, 2016 to 2025
General payments to Dr. Klemann by kind, 2016 to 2025
- Food and beverage$4,044100%
- Education$160%
Companies that paid Dr. Klemann the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gilbert Perkins Klemann graduated from Emory University School of Medicine
Dr. Klemann graduated from Emory University School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gilbert Perkins Klemann's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gilbert Perkins Klemann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gilbert Perkins Klemann's NPI number?
Dr. Gilbert Perkins Klemann's NPI number is 1679629927. It was assigned on January 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gilbert Perkins Klemann?
Dr. Gilbert Perkins Klemann is a urologist in Portland, Oregon. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Gilbert Perkins Klemann practice?
Dr. Klemann practices at 5050 NE Hoyt Street, Suite 156, Portland, OR 97213. Dr. Klemann's primary practice is Plaza Ambulatory Surgery Center - Portland in Portland, Oregon. Dmand AI also links Dr. Klemann to 4 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Gilbert Perkins Klemann's office phone number?
The practice phone on file for Dr. Klemann is (971) 229-8100.
What is Dr. Gilbert Perkins Klemann's medical license number?
Dr. Klemann holds Oregon license MD27214.
Which hospitals is Dr. Gilbert Perkins Klemann affiliated with?
Dr. Klemann is affiliated with Providence St. Vincent Medical Center. Dmand AI links Dr. Klemann to 4 more hospitals.
What medical group is Dr. Gilbert Perkins Klemann part of?
Dr. Klemann is linked to The Oregon Clinic. Dmand AI links Dr. Klemann to 2 more medical groups.
Does Dr. Gilbert Perkins Klemann accept Medicare?
Yes. CMS data shows Dr. Klemann billed Medicare for 1,750 services in 2024, and Dr. Klemann accepts Medicare assignment.
What is Dr. Gilbert Perkins Klemann's MIPS score?
Dr. Klemann's MIPS final score for performance year 2024 is 91 out of 100, reported individually.
How many Medicare patients does Dr. Gilbert Perkins Klemann see?
CMS counts 396 Medicare patients who saw Dr. Klemann in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Gilbert Perkins Klemann bill to Medicare?
In 2024, Dr. Klemann's most billed Medicare services were injected or infused drug (J9030), surgery: urinary system (51798) and office visit, established patient (99213).
Where did Dr. Gilbert Perkins Klemann go to medical school?
Dr. Klemann graduated from Emory University School of Medicine in 2002.
What drugs does Dr. Gilbert Perkins Klemann prescribe most?
In 2024 Medicare Part D data, Dr. Klemann's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Myrbetriq.
Has Dr. Gilbert Perkins Klemann received payments from drug or device companies?
CMS Open Payments shows $4,059 in general payments to Dr. Klemann from 35 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Gilbert Perkins Klemann been practicing?
Dr. Klemann graduated from medical school in 2002, 24 years ago.
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