NPPES file of Aug 9, 2026

Nathan J. Robison, MD

Pediatric Hematology & Oncology Physician · Los Angeles, CA

Nathan J. Robison, MD is a pediatric hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1235391996, issued on Jun 25, 2008. Check the license (California A86955, 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
1235391996
Name
Nathan J. Robison
Credential
MD
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License numbers
A86955 CA
238951 MA
Self-reported in NPPES; status is on the state search
Practice location
4650 W Sunset Blvd, Los Angeles, CA 90027
Phone
(323) 361-3550
Enumerated
Jun 25, 2008
Record last updated
Mar 29, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(323) 361-8052
Medicare enrollment
Enrolled (PECOS I20050801001200); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2002
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 4650 W Sunset Blvd

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

  1. Hisham Abdel-Azim, MDPediatric Hematology & Oncology Physician1114018694
  2. Ashraf Abou-Zamzam, MDPediatric Critical Care Medicine Physician1457442931
  3. Karineh Aboulian, MDPediatrics Physician1275774325
  4. Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
  5. Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
  6. Etai Adam, M.D.Pediatrics Physician1578811998

Verify Nathan J. Robison in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A86955
    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

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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Industry payments in 2024: $3,150.00

1 payment: consulting fee; the largest payer was Day One Biopharmaceuticals. The 1,215 providers of this specialty with any payment received $7,404.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Robison$3,150.00
  2. Specialty average$7,404.07

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. Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA

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

Nathan J. Robison among 417 pediatric hematology & oncology physician records in California

Nathan J. Robison, MD is one of 417 pediatric hematology & oncology physician records with a practice address in California. 53% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 40% newer
  • In a Medicare fileYes · 53% of these records are
  • In the CMS Doctors and Clinicians fileYes · 29% of these records are
  • Graduated2002 · median 2004 among the 120 with a school on file
  • Record last updated2017 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in California

There are 417 pediatric hematology & oncology physician records in California.

The 8 pediatric hematology & oncology physician records with the nearest ZIP codes

  1. Anna Butturini, MDLos Angeles, CA 900271467551499
  2. Jerry Cheng, M.D.Los Angeles, CA 900271093741175
  3. Thomas Coates, MDLos Angeles, CA 900271790885697
  4. Andrew Dietz, MD, MSLos Angeles, CA 900271700992443
  5. Edward Gomperts, MDLos Angeles, CA 900271306946215
  6. Rima Jubran, MDLos Angeles, CA 900271649379140
  7. William May, MDLos Angeles, CA 900271790884898
  8. Fariba Navid, MDLos Angeles, CA 900271144223926

Common questions

What is Nathan J. Robison, MD's NPI number?

Nathan J. Robison, MD's National Provider Identifier (NPI) is 1235391996, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nathan J. Robison, MD located?

The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 361-3550. Providers update this record themselves, so call before visiting.

How can I verify Nathan J. Robison, MD's license?

NPPES lists California license number A86955, 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.

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.