Gregory Scott Aaen, M.D.
Neurology with Special Qualifications in Child Neurology Physician · Loma Linda, CA
Gregory Scott Aaen, M.D. is a neurology with special qualifications in child neurology physician with a practice address in Loma Linda, California, and NPI 1780898304, issued on May 10, 2007. Check the license (California A90485, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Scott Aaen
- Credential
- M.D.
- Primary taxonomy
- Neurology with Special Qualifications in Child Neurology Physician 2084N0402X
- License number
- A90485 CA
Self-reported in NPPES; status is on the state search - Practice location
- Llumc, House Staff Office CP 21005, 11234 Anderson St., Loma Linda, CA 92354
- Phone
- (909) 558-4000
- Enumerated
- May 10, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081021000428); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest neurology with special qualifications in child neurology physician records → All 271 in California → Look up another NPI →
Verify Gregory Scott Aaen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90485Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 85.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $96.89
3 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 1,195 providers of this specialty with any payment received $5,568.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Scott Aaen among 271 neurology with special qualifications in child neurology physician records in California
Gregory Scott Aaen, M.D. is one of 271 neurology with special qualifications in child neurology physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 56% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated2003 · median 2011 among the 90 with a school on file
- Record last updated2007 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0402X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology with Special Qualifications in Child Neurology Physician providers in California
There are 271 neurology with special qualifications in child neurology physician records in California.
All 271 in California → Every provider in Loma Linda → Neurology with Special Qualifications in Child Neurology Physician nationwide →
The 8 neurology with special qualifications in child neurology physician records with the nearest ZIP codes
- Priscilla Chee, MDLoma Linda, CA 923541245599588
- Ochuko Diamreyan, MDLoma Linda, CA 923541639798622
- Meriam Makary-Botros, MDLoma Linda, CA 923541548461023
- Allison Przekop, DOLoma Linda, CA 923541740493717
- Sarah Roddy, M.D.Loma Linda, CA 923541942220710
- Stanford Shu, M.D.Loma Linda, CA 923541548280340
- Delphin Sallowm, M.DLoma Linda, CA 923501801002092
- Gamil Fteeh, M.D.San Bernardino, CA 924081053543165
Common questions
What is Gregory Scott Aaen, M.D.'s NPI number?
Gregory Scott Aaen, M.D.'s National Provider Identifier (NPI) is 1780898304, issued on May 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Scott Aaen, M.D. located?
The NPPES record lists a practice address at Llumc, House Staff Office CP 21005, 11234 Anderson St., Loma Linda, CA, 92354. Phone: (909) 558-4000. Providers update this record themselves, so call before visiting.
How can I verify Gregory Scott Aaen, M.D.'s license?
NPPES lists California license number A90485, 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.
What is Gregory Scott Aaen, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.