NPPES file of Aug 9, 2026

Ronald G. St. Hill, MD

Child & Adolescent Psychiatry Physician · Gardena, CA

Ronald G. St. Hill, MD is a child & adolescent psychiatry physician with a practice address in Gardena, California, and NPI 1316032147, issued on Oct 4, 2006. Check the license (California 186820, 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
1316032147
Name
Ronald G. St. Hill
Credential
MD
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License numbers
186820 CA
036-113170 IL
Q2392 TX
Self-reported in NPPES; status is on the state search
Practice location
1225 W 190TH St Ste 280, Gardena, CA 90248
Phone
(877) 515-8113
Enumerated
Oct 4, 2006
Record last updated
Sep 5, 2023
Medicaid IDs
207468000 MO
036113170 IL
Medicare enrollment
Enrolled (PECOS I20230829000906); 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 1225 W 190TH St Ste 280

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

  1. Ebtessam AbdelbasetDay Training/Habilitation Specialist1407624125
  2. Mahmoud Aborabeh, MDPsychiatry Physician1720439672
  3. Adeshewa Adekunbi, MDChild & Adolescent Psychiatry Physician1083134829
  4. Olajumoke AdeyemiPsychiatric/Mental Health Nurse Practitioner1114323755
  5. Wendy Agyapong, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1164308656
  6. Felix Ahmedov, RNPsychiatric/Mental Health Registered Nurse1083372361

Verify Ronald G. St. Hill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 186820
    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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10% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

456 Medicare Part D claims for 17 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Ronald St. Hill456
  2. Specialty average504

Most prescribed

  1. Aripiprazole45 claims
  2. Fluoxetine Hcl43 claims
  3. Alprazolam38 claims
  4. Doxepin Hcl29 claims
  5. Mirtazapine25 claims
  6. Duloxetine Hcl24 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: $19.66

1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 1,578 providers of this specialty with any payment received $1,427.96 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald St. Hill$19.66
  2. Specialty average$1,427.96

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospitals and group practices

  1. Blessing HospitalQuincy, IL · Acute Care Hospitals4 of 5 stars
  2. Ehab Yacoub MD IncGardena, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ronald G. St. Hill among 1,009 child & adolescent psychiatry physician records in California

Ronald G. St. Hill, MD is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 55% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated1996 · median 2005 among the 215 with a school on file
  • Record last updated2023 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in California

There are 1,009 child & adolescent psychiatry physician records in California.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Adeshewa Adekunbi, MDGardena, CA 902481083134829
  2. Dawn Brown, M.D.Gardena, CA 902481740481118
  3. Vashaun Williams, M.D.Gardena, CA 902481730286527
  4. Duong Ho-Hoang, D.O., M.ED.Downey, CA 902421922364009
  5. Joseph Marquez, D.O.Downey, CA 902421902989528
  6. Elias Rodriguez, MEDICAL DOCTORDowney, CA 902421972684744
  7. Hadijat Audu, MDHuntington Park, CA 902551013544790
  8. Gayane Begoyan, M.D.Huntington Park, CA 902551427210954

Common questions

What is Ronald G. St. Hill, MD's NPI number?

Ronald G. St. Hill, MD's National Provider Identifier (NPI) is 1316032147, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald G. St. Hill, MD located?

The NPPES record lists a practice address at 1225 W 190TH St Ste 280, Gardena, CA, 90248. Phone: (877) 515-8113. Providers update this record themselves, so call before visiting.

How can I verify Ronald G. St. Hill, MD's license?

NPPES lists California license number 186820, 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 Ronald G. St. Hill, MD prescribe under Medicare Part D?

In 2024, Ronald G. St. Hill, MD had 456 Medicare Part D claims for 17 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. 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.