NPPES file of Aug 9, 2026

Oswald Llanderosos, M.D.

Nephrology Physician · Norman, OK

Oswald Llanderosos, M.D. is a nephrology physician with a practice address in Norman, Oklahoma, and NPI 1679554737, issued on Nov 7, 2005. Check the license (Oklahoma 11647, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1679554737
Name
Oswald Llanderosos
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
11647 OK
Self-reported in NPPES; status is on the state search
Practice location
1553 N Porter Ave, Norman, OK 73071
Phone
(405) 217-8500
Enumerated
Nov 7, 2005
Record last updated
Nov 18, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(405) 217-8501
Medicaid ID
100108050A OK
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1553 N Porter Ave

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

  1. Kendral Knight, M.D.Nephrology Physician1275783250
  2. Cuong Nguyen, MDNephrology Physician1659497451
  3. Delia Sarale, M.D.Clinical Genetics (M.D.) Physician1902016132
  4. Dustin Tedesco, MDInternal Medicine Physician1649476136
  5. David Williams, M.D.Nephrology Physician1518991264

Verify Oswald Llanderosos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 11647
    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 Oklahoma license search

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98% fewer Medicare Part D claims than the average nephrology physician in 2024

23 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Oswald Llanderosos23
  2. Specialty average1,465

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.

Oswald Llanderosos among 112 nephrology physician records in Oklahoma

Oswald Llanderosos, M.D. is one of 112 nephrology physician records with a practice address in Oklahoma. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 79% of these records are
  • Record last updated2009 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Oklahoma

There are 112 nephrology physician records in Oklahoma.

The 8 nephrology physician records with the nearest ZIP codes

  1. Kendral Knight, M.D.Norman, OK 730711275783250
  2. Cuong Nguyen, MDNorman, OK 730711659497451
  3. David Williams, M.D.Norman, OK 730711518991264
  4. Pankaj Baluja, MDOklahoma City, OK 731021063480309
  5. Usman Bhutta, MDOklahoma City, OK 731021588896997
  6. Joe Ghata, MDOklahoma City, OK 731021215258017
  7. Usman Khan, M.DOklahoma City, OK 731021104379239
  8. Rajesh Kumar, MDOklahoma City, OK 731021134272933

Common questions

What is Oswald Llanderosos, M.D.'s NPI number?

Oswald Llanderosos, M.D.'s National Provider Identifier (NPI) is 1679554737, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Oswald Llanderosos, M.D. located?

The NPPES record lists a practice address at 1553 N Porter Ave, Norman, OK, 73071. Phone: (405) 217-8500. Providers update this record themselves, so call before visiting.

How can I verify Oswald Llanderosos, M.D.'s license?

NPPES lists Oklahoma license number 11647, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Oswald Llanderosos, M.D. prescribe under Medicare Part D?

In 2024, Oswald Llanderosos, M.D. had 23 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. 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.