NPPES file of Aug 9, 2026

Oliver S. Ko, M.D.

Urology Physician · Litchfield Park, AZ

Oliver S. Ko, M.D. is a urology physician with a practice address in Litchfield Park, Arizona, and NPI 1780046946, issued on Mar 25, 2016. Check the license (Arizona 68414, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780046946
Name
Oliver S. Ko
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License numbers
68414 AZ
A175833 CA
125.068359 IL
Self-reported in NPPES; status is on the state search
Practice location
14044 W Camelback RD Ste 118, Litchfield Park, AZ 85340
Phone
(623) 547-2600
Enumerated
Mar 25, 2016
Record last updated
Jul 5, 2023
Fax
(623) 547-1899
Medicare enrollment
Enrolled (PECOS I20230728001753); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 14044 W Camelback RD Ste 118

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

  1. Susan Bast, NPFamily Nurse Practitioner1851703862
  2. Aaron Brandis, MDVascular & Interventional Radiology Physician1538326798
  3. Rachael BrownPhysician Assistant1124801261
  4. Justin Campagna, MDUrology Physician1821656661
  5. Marco Canulla, MDSurgery Physician1194700286
  6. Tymothi Claude, PAMedical Physician Assistant1841718822

Verify Oliver S. Ko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 68414
    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 Arizona 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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31% fewer Medicare Part D claims than the average urology physician in 2024

919 Medicare Part D claims for 369 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 54 claims were for opioids.

  1. Oliver Ko919
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl232 claims
  2. Ciprofloxacin Hcl121 claims
  3. Solifenacin Succinate79 claims
  4. Myrbetriq66 claims
  5. Sulfamethoxazole-Trimethoprim49 claims
  6. Estradiol43 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.

Industry payments in 2024: $1,376.25

30 payments; by number, the most common kind was food and beverage; the largest payer was Procept BioRobotics Corporation. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oliver Ko$1,376.25
  2. Specialty average$3,800.04

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. Arizona Digestive Health PCLitchfield Park, AZ

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

9 urology physician records list a practice address in Litchfield Park

They are 9 of the 550 NPPES records with a practice address in Litchfield Park, and 277 urology physician records in Arizona.

Other urology physician records in Arizona

  1. Haidar Abdul-Muhsin, M.B.CH.B.Scottsdale, AZ1356755250
  2. Jonathan Agins, MDGoodyear, AZ1316997687
  3. Kian Ahmadieh, MDGilbert, AZ1932697190
  4. Bernice Alcanzo, MDTucson, AZ1629822424
  5. Erik Alexander, MDScottsdale, AZ1073590014
  6. Kashif Alvi, MDMesa, AZ1407982887
  7. Andrew Amenyogbe, MDPhoenix, AZ1891674198
  8. Jack Andrews, M.D.Phoenix, AZ1396190336
  9. Paul Andrews, M.D.Phoenix, AZ1710962345
  10. Luis Argueso, M.D.Phoenix, AZ1750361879

Common questions

What is Oliver S. Ko, M.D.'s NPI number?

Oliver S. Ko, M.D.'s National Provider Identifier (NPI) is 1780046946, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Oliver S. Ko, M.D. located?

The NPPES record lists a practice address at 14044 W Camelback RD Ste 118, Litchfield Park, AZ, 85340. Phone: (623) 547-2600. Providers update this record themselves, so call before visiting.

How can I verify Oliver S. Ko, M.D.'s license?

NPPES lists Arizona license number 68414, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Oliver S. Ko, M.D. prescribe under Medicare Part D?

In 2024, Oliver S. Ko, M.D. had 919 Medicare Part D claims for 369 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.