Hillary Ruth O'Brien, MD
Obstetrics & Gynecology Physician · Reno, NV
Hillary Ruth O'Brien, MD is an obstetrics & gynecology physician with a practice address in Reno, Nevada, and NPI 1922621903, issued on May 25, 2020. Check the license (Nevada 26126, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Hillary Ruth O'Brien
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 26126 NV
Self-reported in NPPES; status is on the state search - Practice location
- 901 E 2ND St, Reno, NV 89502
- Phone
- (775) 982-5000
- Enumerated
- May 25, 2020
- Record last updated
- Sep 5, 2024
- Fax
- (775) 982-3901
- Medicare enrollment
- Enrolled (PECOS I20240917002868); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 318 in Nevada → Look up another NPI →
Also registered at 901 E 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Jacobs, MDObstetrics & Gynecology Physician1780647875
- Bejal Patel, M.D.Pediatrics Physician1154613289
Verify Hillary Ruth O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 26126Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
48 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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: $18.84
1 payment: food and beverage; the largest payer was Genentech USA, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Community Care Services LLCReno, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hillary Ruth O'Brien among 318 obstetrics & gynecology physician records in Nevada
Hillary Ruth O'Brien, MD is one of 318 obstetrics & gynecology physician records with a practice address in Nevada. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2020 · median 2002 among the 205 with a school on file
- Record last updated2024 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Nevada
There are 318 obstetrics & gynecology physician records in Nevada.
All 318 in Nevada → Every provider in Reno → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lindsay BridgewaterReno, NV 895021659781367
- Daniel Chang, MDReno, NV 895021225094808
- Martin Dennis, M.D.Reno, NV 895021184724098
- Bruce Farringer, MDReno, NV 895021255326450
- Heather Fuentes, D.O.Reno, NV 895021851684641
- Scott Jacobs, MDReno, NV 895021780647875
- Mary Kilkenny, MDReno, NV 895021720134232
- Craig Klose, M.D.Reno, NV 895021902869506
Common questions
What is Hillary Ruth O'Brien, MD's NPI number?
Hillary Ruth O'Brien, MD's National Provider Identifier (NPI) is 1922621903, issued on May 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Hillary Ruth O'Brien, MD located?
The NPPES record lists a practice address at 901 E 2ND St, Reno, NV, 89502. Phone: (775) 982-5000. Providers update this record themselves, so call before visiting.
How can I verify Hillary Ruth O'Brien, MD's license?
NPPES lists Nevada license number 26126, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hillary Ruth O'Brien, MD prescribe under Medicare Part D?
In 2024, Hillary Ruth O'Brien, MD had 48 Medicare Part D claims for 17 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.