NPPES file of Aug 9, 2026

Anthony Paul Nicolaysen, MD

Nephrology Physician · Mission Hills, CA

Anthony Paul Nicolaysen, MD is a nephrology physician with a practice address in Mission Hills, California, and NPI 1154869576, issued on Feb 6, 2017. Check the license (California A174994, as entered in NPPES) on the Medical Board of California; 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
1154869576
Name
Anthony Paul Nicolaysen
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A174994 CA
Self-reported in NPPES; status is on the state search
Practice location
11550 Indian Hills RD Ste 371, Mission Hills, CA 91345
Phone
(818) 365-1194
Enumerated
Feb 6, 2017
Record last updated
Jul 16, 2025
Fax
(818) 898-3835
Medicare enrollment
Enrolled (PECOS I20230728001049); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2018
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 11550 Indian Hills RD Ste 371

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

  1. Ammar Alnaser, M.D.Nephrology Physician1073909370
  2. Cherreby Anderson, MSN, APRN, FNP-BCAdult Health Nurse Practitioner1578248571
  3. Mrinal Asopa, DOInternal Medicine Physician1184252009
  4. Elizabeth Cattell, R.N., ACNP-CNurse Practitioner1023144920
  5. Pascal Dabel, M.D.Nephrology Physician1033306592
  6. Kristian Caesar Fernandez, NPNurse Practitioner1972315588

Verify Anthony Paul Nicolaysen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A174994
    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 California license search

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46% fewer Medicare Part D claims than the average nephrology physician in 2024

795 Medicare Part D claims for 171 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Anthony Nicolaysen795
  2. Specialty average1,465

Most prescribed

  1. Jardiance100 claims
  2. Lisinopril72 claims
  3. Farxiga57 claims
  4. Losartan Potassium53 claims
  5. Amlodipine Besylate47 claims
  6. Nifedipine Er43 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: $800.08

32 payments; by number, the most common kind was food and beverage; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Anthony Nicolaysen$800.08
  2. Specialty average$3,091.37

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. Kidney Consultants Medical Group IncMission Hills, CA

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

11 nephrology physician records list a practice address in Mission Hills

They are 11 of the 731 NPPES records with a practice address in Mission Hills, and 1,468 nephrology physician records in California.

Other nephrology physician records in California

  1. Antoine Abcar, MDLos Angeles, CA1245301159
  2. Basmah Abdalla, M.D.Los Angeles, CA1629394002
  3. Omaran Abdeen, M.D.Mission Hills, CA1700878410
  4. Joseph Abdelmalek, M.DSan Diego, CA1740485531
  5. Lama Abdelnour, MDLos Angeles, CA1477817542
  6. Amir Abdi Pour, MDLoma Linda, CA1912187477
  7. Anas Abou-Ismail, MDPalm Springs, CA1598078784
  8. Graham Abra, M.D.Stanford, CA1760644678
  9. Sreedhar Adapa, M.D.Visalia, CA1881997872
  10. Gbemisola Adenuga, M.D.Los Angeles, CA1952464661

Common questions

What is Anthony Paul Nicolaysen, MD's NPI number?

Anthony Paul Nicolaysen, MD's National Provider Identifier (NPI) is 1154869576, issued on Feb 6, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Paul Nicolaysen, MD located?

The NPPES record lists a practice address at 11550 Indian Hills RD Ste 371, Mission Hills, CA, 91345. Phone: (818) 365-1194. Providers update this record themselves, so call before visiting.

How can I verify Anthony Paul Nicolaysen, MD's license?

NPPES lists California license number A174994, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Anthony Paul Nicolaysen, MD prescribe under Medicare Part D?

In 2024, Anthony Paul Nicolaysen, MD had 795 Medicare Part D claims for 171 beneficiaries; 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.