NPPES file of Aug 9, 2026

Providers Michael O'Brien, M.D. to Sandra O'Brien, N.P.

300 individual NPIs in the federal registry, part 16,008 of 24,427 of the A to Z by surname. Each row is the registry's record: the name and credential, the NPI, the primary specialty, the practice city and the year the NPI was issued. 111 link to a page of their own with Medicare and CMS data the registry does not carry.

CMS NPPES registry, monthly file · specialties as NUCC taxonomy codes · method

ProviderNPISpecialtyPractice cityNPI issued
Michael O'Brien, M.D.1730107061Surgery PhysicianNew Haven, CT2006
Michael O'Brien, PSYD HSPP1740557206Clinical PsychologistIndianapolis, IN2011
Michael O'Brien1790293827Clinical PsychologistBoston, MA2018
Michael O'Brien, PA-C1801090121Medical Physician AssistantOrlando, FL2007
Michael O'Brien, MD1811070972Psychiatry PhysicianStonington, CT2006
Michael O'Brien1811408347Case Manager/Care CoordinatorSheridan, WY2017
Michael O'Brien, M.D.1821181215Family Medicine PhysicianCastro Valley, CA2006
Michael O'Brien, DDS1861402992General Practice DentistrySacramento, CA2006
Michael O'Brien, AAS, CAC-II, SST1861603417Addiction (Substance Use Disorder) CounselorPontiac, MI2007
Michael O'Brien, M.D.1891945952Obesity Medicine (Family Medicine) PhysicianTowson, MD2008
Michael O'Brien1902670565Personal Care AttendantCincinnati, OH2023
Michael O'Brien, PA1922625185Physician AssistantFlorence, MA2020
Michael O'Brien, LSW, CDCA1932691367Clinical Social WorkerYoungstown, OH2018
Michael O'Brien, DDS1942876545General Practice DentistryDetroit, MI2021
Michael O'Brien, P.T.1952311862Physical TherapistMechanicsville, MD2006
Michael O'Brien, M.D.1952335606Sports Medicine (Internal Medicine) PhysicianBoston, MA2006
Michael O'Brien, D.C.1982940235ChiropractorDenver, CO2012
Michael O'Brien, O.D.1992854939OptometristLanesborough, MA2007
Michaela O'Brien1558033530Physical TherapistAnnapolis, MD2021
Michaela O'Brien, MS, PLMHP1952177784Mental Health CounselorOmaha, NE2023
Michele O'Brien, CNS1023117637Adult Health Clinical Nurse SpecialistEdina, MN2006
Michele O'Brien, RN1265300487Registered NursePortland, OR2025
Michele O'Brien, LPN1447510151Licensed Practical NurseNorthfield, OH2012
Michele O'Brien, D.C.1912368051ChiropractorMuskegon, MI2016
Michele O'Brien, LCSW1942639034Clinical Social WorkerSalinas, CA2013
Michelle O'Brien, PHARMD1033543673PharmacistPerrysburg, OH2013
Michelle O'Brien, M.D.1073956538Orthopaedic Hand Surgery PhysicianWest Columbia, SC2013
Michelle O'Brien, RN1093303257Registered NurseBellingham, WA2021
Michelle O'Brien, D.O.1144601618Psychiatry PhysicianFort Collins, CO2015
Michelle O'Brien, PHD, LCSW1154935963Clinical Social WorkerNew York, NY2020
Michelle O'Brien, PA-C1245648344Physician AssistantHinsdale, IL2014
Michelle O'Brien, M.D.1386748242Family Medicine PhysicianSaint Paul, MN2006
Michelle O'Brien, M.D.1427282276Anesthesiology PhysicianColumbus, IN2009
Michelle O'Brien, LMT1437629698Massage TherapistGig Harbor, WA2018
Michelle O'Brien, RBT1659964476Behavior TechnicianLakewood, CO2021
Michelle O'Brien1801204680Family Medicine PhysicianNew Orleans, LA2014
Michelle O'Brien, DPT1942093208Physical TherapistBelmont, MS2025
Michelle O'Brien, MS,CCC-SLP1952536302Speech-Language PathologistClinton, NY2009
Miechelle O'Brien, M.D.1356582571Gastroenterology PhysicianDanbury, CT2009
Mikayla O'Brien, PA1053116434Physician AssistantNew York, NY2025
Milton O'Brien, D.C.1942377551ChiropractorSan Francisco, CA2006
Miranda O'Brien1295558187Social WorkerSan Francisco, CA2024
Miranda O'Brien1306241955PharmacistSelbyville, DE2014
Miranda O'Brien, OTR/L1528784055Occupational TherapistSterling, VA2022
Miranda O'Brien, LLMSW1730052077Clinical Social WorkerLansing, MI2025
Misty O'Brien1942873500Behavior TechnicianSpokane Valley, WA2021
Moira O'Brien, MSW, APSW1245085729Clinical Social WorkerStoughton, WI2024
Mollie O'Brien, ARNP1255958427Family Nurse PractitionerWest Des Moines, IA2020
Molly O'Brien, PA1033614524Physician AssistantFall River, MA2018
Molly O'Brien, LICSW1083166458Clinical Social WorkerWarwick, RI2016
Molly O'Brien1124494448Developmental TherapistMilford, MA2015
Molly O'Brien1164352662Behavior TechnicianBurton, MI2026
Molly O'Brien, LMT1174757884Massage TherapistSanta Fe, NM2009
Molly O'Brien, DO1205679453Student in an Organized Health Care Education/Training ProgramMesa, AZ2024
Molly O'Brien, PA-C1437713930Surgical Physician AssistantGlenview, IL2019
Molly O'Brien1467803767Speech-Language PathologistIndianapolis, IN2016
Molly O'Brien, BCBA, LBA1497628531Behavior AnalystNew Orleans, LA2025
Molly O'Brien, DO1619619152Hospitalist PhysicianNorth Kansas City, MO2022
Molly O'Brien, MD1689378960Student in an Organized Health Care Education/Training ProgramNew York, NY2023
Molly O'Brien, P.T.1932205978Physical TherapistBurlington, VT2006
Molly O'Brien1972337376Community Health WorkerBurlington, VT2024
Momoko O'Brien, PT1366488595Physical TherapistBuckley Afb, CO2006
Monica O'Brien, NP1124179007Adult Health Nurse PractitionerNew York, NY2007
Monica O'Brien, MD1194528679Otolaryngology PhysicianBoston, MA2025
Monica O'Brien, CFY SLP1356028716Speech-Language PathologistDanville, PA2023
Monica O'Brien, NP1639459498Psychiatric/Mental Health Nurse PractitionerBrockton, MA2011
Monika O'Brien, DMD1376974477DentistSewell, NJ2013
Monique O'Brien1700392115Developmental TherapistFort Walton Beach, FL2017
Morgan O'Brien1093479164Personal Care AttendantCharleston, WV2021
Morgan O'Brien, MS, PA-C1114557329Physician AssistantCarlsbad, CA2020
Morgan O'Brien, MS, BCBA, LBA1598392250Behavior AnalystLexington, KY2020
Morgan O'Brien, MS1760998850Speech-Language PathologistTulsa, OK2017
Morgan O'Brien, DPT1821580846Physical TherapistPalm Harbor, FL2018
Morgan O'Brien, APRN - NNP1972118222Neonatal Nurse PractitionerPortland, ME2020
Morganne O'Brien, DO1629829866Student in an Organized Health Care Education/Training ProgramGoodyear, AZ2024
Mykaela O'Brien1720859440Behavior TechnicianFort Walton Beach, FL2024
Nancy O'Brien, CNM1003084245MidwifeRohnert Park, CA2008
Nancy O'Brien, RN1083740138Psychiatric/Mental Health Registered NurseClifton, NJ2007
Nancy O'Brien, RN1255603676Registered NursePhoenix, AZ2012
Nancy O'Brien, MD1770576373Pediatric Hematology & Oncology PhysicianOttumwa, IA2005
Natalie O'Brien, LCSW1942787080Clinical Social WorkerNew Britain, CT2018
Nathan O'Brien, MD1407438450Emergency Medicine PhysicianBuffalo, NY2021
Nathan O'Brien, M.D.1558628578Emergency Medicine PhysicianOcoee, FL2012
Nayanne O'Brien1073431375Registered NurseNorth Attleboro, MA2026
Neal O'Brien, DPT1881579415Physical TherapistDenver, CO2025
Neil O'Brien, D.C.1609842798ChiropractorCotuit, MA2006
Neil O'Brien, PTA1871003236Physical Therapy AssistantMenomonee Falls, WI2017
Neive O'Brien1922827252Physician AssistantEast Lansing, MI2024
Niall O'Brien1013634526Physical TherapistGreenville, SC2022
Nicholas O'Brien, PMHNP1134504715Psychiatric/Mental Health Nurse PractitionerTorrington, CT2015
Nicholas O'Brien, LPC1285143941Professional CounselorColumbia, MO2017
Nicholas O'Brien, PT, DPT1831605716Physical TherapistVineland, NJ2017
Nichole O'Brien1265234520Case Manager/Care CoordinatorPlymouth, MA2025
Nichole O'Brien1588257042Community Health WorkerJuneau, AK2021
Nichole O'Brien, ARNP1902384118Nurse PractitionerAmes, IA2018
Nicolas O'Brien1275295552CounselorCorvallis, OR2021
Nicole O'Brien1013871896School PsychologistAlexandria, VA2025
Nicole O'Brien, MA, LMFT1023328796Marriage & Family TherapistSebastopol, CA2010
Nicole O'Brien, LPC, MS1053156273Professional CounselorCoeur D Alene, ID2024
Nicole O'Brien, PT1144050998Physical TherapistSuffern, NY2024
Nicole O'Brien1164076402Professional CounselorDickson City, PA2019
Nicole O'Brien1205425923PharmacistCorinth, NY2021
Nicole O'Brien, MA, BCBA1215463559Behavior AnalystOrlando, FL2017
Nicole O'Brien, RD1245048784Registered DietitianNew York, NY2024
Nicole O'Brien, L.M.F.T., PH.D.1265734503Marriage & Family TherapistNorwalk, CT2010
Nicole O'Brien, P.T.1285866418Physical TherapistMarquette, MI2009
Nicole O'Brien1447815873Behavior TechnicianVenice, FL2019
Nicole O'Brien1497687792Registered NurseMinneapolis, MN2026
Nicole O'Brien1538984919Physical Therapy AssistantMedford, WI2024
Nicole O'Brien, NP1639887060Pediatric Nurse PractitionerStoneham, MA2022
Nicole O'Brien, R.D.1669919478Registered DietitianNew Hyde Park, NY2017
Nicole O'Brien, DNP, FNP1699325654Family Nurse PractitionerHalfmoon, NY2019
Nicole O'Brien1720935646Hearing Instrument SpecialistToms River, NJ2026
Nicole O'Brien, LCSW1851874812Clinical Social WorkerScarborough, ME2018
Nicole O'Brien, PHARMD, CDOE1912499864PharmacistLincoln, RI2018
Nicole O'Brien, PSY.D.1942637137PsychologistBozeman, MT2013
Nikalina O'Brien, MD1508611427Internal Medicine PhysicianCharleston, SC2024
Nina O'Brien1568750370Social WorkerDanville, IL2011
Nora O'Brien, P.T.1154660751Physical TherapistNew Rochelle, NY2013
Nora O'Brien, ANP1841613205Nurse PractitionerSaint Louis, MO2014
Norma O'Brien, FNP1861574311Family Nurse PractitionerMonticello, NY2006
Olga O'Brien, NP1356858963Family Nurse PractitionerFargo, ND2018
Olga O'Brien, ABA1568966232Behavior TechnicianWeymouth, MA2018
Olivia O'Brien, CDCA1386154193Case Manager/Care CoordinatorIronton, OH2017
Owen O'Brien, LMSW1043646771Clinical Social WorkerAustin, TX2013
Paige O'Brien, LCSW1174970610Clinical Social WorkerRichmond, VA2016
Paige O'Brien, DMD1386214914DentistRoseville, CA2021
Pamela O'Brien, N.P.1225129463Adult Health Nurse PractitionerBurlington, MA2006
Pamela O'Brien, LCSW1407025919Clinical Social WorkerIndianapolis, IN2008
Pamela O'Brien1801588942Social WorkerSacramento, CA2023
Pamela O'Brien, LPC1831324268Mental Health CounselorWashington, DC2009
Pamela O'Brien1922141720Occupational TherapistEast Norwich, NY2007
Patience O'Brien, LPC1043490048Professional CounselorRoanoke, VA2007
Patrice O'Brien, R.D.H.1386817088Dental HygienistAlbuquerque, NM2008
Patricia O'Brien, DC1023047495ChiropractorStratford, NJ2006
Patricia O'Brien, D.D.S.1154531358General Practice DentistryBaltimore, MD2007
Patricia O'Brien, FNP1164467346Nurse PractitionerHemphill, TX2006
Patricia O'Brien, RN1194197616Clinical Nurse SpecialistFredericksburg, VA2015
Patricia O'Brien1215297585Case Manager/Care CoordinatorOswego, NY2012
Patricia O'Brien, RR, CPNP-AC1285851816Pediatric Nurse PractitionerBoston, MA2007
Patricia O'Brien, PHD1316546179Clinical PsychologistPortland, OR2020
Patricia O'Brien, OTR1427267418Pediatric Occupational TherapistElmhurst, IL2007
Patricia O'Brien1467148643Case Manager/Care CoordinatorGreen River, WY2023
Patricia O'Brien, MSW,LCSW,OSW-C1497978886Mental Health CounselorPompton Lakes, NJ2007
Patricia O'Brien, OTR/L1649578873Pediatric Occupational TherapistChicago, IL2011
Patricia O'Brien1669751236Family Nurse PractitionerSan Antonio, TX2011
Patricia O'Brien, PH.D1720103419Clinical PsychologistLos Angeles, CA2007
Patricia O'Brien, M.DIV., LICSW1801030416Clinical Social WorkerSouth Hamilton, MA2009
Patricia O'Brien1801245584Acute Care Nurse PractitionerPhiladelphia, PA2016
Patricia O'Brien, APRN1861828758Family Nurse PractitionerMiddletown, CT2013
Patricia O'Brien, M.A1902019896Marriage & Family TherapistEast Syracuse, NY2007
Patricia O'Brien, M.D.1912114968Hospitalist PhysicianTampa, FL2007
Patricia O'Brien1922499284Internal Medicine PhysicianNew Orleans, LA2015
Patrick O'Brien, CRNA1053974790Certified Registered Nurse AnesthetistSpringfield, IL2019
Patrick O'Brien, M.D.1083639397Diagnostic Radiology PhysicianBloomington, MN2006
Patrick O'Brien, P.T.1104915289Physical TherapistPhoenix, AZ2006
Patrick O'Brien, PA1124076757Surgical Physician AssistantPhoenix, AZ2006
Patrick O'Brien, PA-C1134577141Surgical Physician AssistantSpringfield, MA2016
Patrick O'Brien, PHD1164991774Clinical PsychologistPittsburgh, PA2018
Patrick O'Brien, M.D.1295711042Obstetrics & Gynecology PhysicianDamariscotta, ME2005
Patrick O'Brien, MD1336140136Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianStoughton, MA2005
Patrick O'Brien, MD1356374219Physical Medicine & Rehabilitation PhysicianRaleigh, NC2006
Patrick O'Brien1376269183Student in an Organized Health Care Education/Training ProgramPlymouth, MA2022
Patrick O'Brien, D.O.1528030137Anesthesiology PhysicianBeachwood, OH2006
Patrick O'Brien, M.D.1528095338Emergency Medicine PhysicianKnoxville, TN2006
Patrick O'Brien, DMD1568422681General Practice DentistryFayetteville, NC2006
Patrick O'Brien, DPT1588497119Physical TherapistSanger, CA2024
Patrick O'Brien, M.S.W.1588899058Mental Health CounselorWilliamsport, PA2009
Patrick O'Brien, LMHC1659891695Mental Health CounselorJacksonville, FL2017
Patrick O'Brien, RDN, CSSD, MS1669235040Sports Dietetics Nutrition Registered DietitianNashville, TN2024
Patrick O'Brien1689934374Community Health WorkerSanta Monica, CA2012
Patrick O'Brien, MD1790130003Neurological Surgery PhysicianMinneapolis, MN2016
Patrick O'Brien, MD1801475298Orthopaedic Surgery PhysicianLittle Rock, AR2021
Patrick O'Brien1841780236Case Manager/Care CoordinatorSaint Clairsville, OH2018
Patrick O'Brien, M.D.1861615155Orthopaedic Surgery PhysicianSioux Falls, SD2007
Patrick O'Brien1942306469General Practice DentistrySpartanburg, SC2006
Patrick O'Brien, MD1942414040Vascular Surgery PhysicianMissoula, MT2007
Patrick O'Brien1952102998Student in an Organized Health Care Education/Training ProgramSpringfield, MA2025
Patrick O'Brien, MD1992782692Diagnostic Radiology PhysicianYakima, WA2005
Paul O'Brien, EDD1215978895PsychologistMedford, MA2006
Paul O'Brien, D.C.,1710011507ChiropractorSeekonk, MA2007
Paul O'Brien, DPT1760874515Physical TherapistBillings, MT2015
Paul O'Brien1780201509Personal Care AttendantWashington, DC2020
Paul O'Brien, M.D.1821007220Emergency Medicine PhysicianPrince Frederick, MD2006
Paul O'Brien, MD1902914864Medical Oncology PhysicianCharleston, SC2006
Paul O'Brien, M.D.1912964933Surgery PhysicianMiamisburg, OH2006
Paul O'Brien, MD1992865588Cardiovascular Disease PhysicianAnnandale, VA2006
Penelope O'Brien, LMP1053490136Massage TherapistSunnyside, WA2006
Peter O'Brien, MD1407803331Surgery PhysicianSioux Falls, SD2006
Peter O'Brien, MD1518941905Interventional Cardiology PhysicianLynchburg, VA2005
Peter O'Brien, DPT1548702707Physical TherapistColumbus, OH2016
Peter O'Brien, FNP1639533490Family Nurse PractitionerMurrieta, CA2016
Peter O'Brien, D.C.1750667770ChiropractorChampaign, IL2011
Philip O'Brien, D.C.1528215258ChiropractorBethlehem, PA2008
Polina O'Brien1235061631Nurse PractitionerSummerville, SC2026
Preston O'Brien, DO1184517765Ophthalmology PhysicianOklahoma City, OK2025
Priyanka O'Brien, M.D.1326306317Otolaryngology PhysicianLongview, WA2012
Quinn O'Brien, OTR/L1619638988Occupational TherapistFlushing, NY2022
Rachael O'Brien, D.D.S.1760819395DentistGrand Prairie, TX2013
Rachael O'Brien1801456280Speech-Language PathologistCleveland, OH2019
Rachel O'Brien, DDS1033857115DentistBattle Creek, MI2022
Rachel O'Brien, C.L.C.1154733848Lactation Consultant (Non-RN)Sudbury, MA2014
Rachel O'Brien1285343202Behavior AnalystPhiladelphia, PA2022
Rachel O'Brien1316557093Family Nurse PractitionerNorth Syracuse, NY2020
Rachel O'Brien1386058162Athletic TrainerUnion Bridge, MD2014
Rachel O'Brien, MS, RD, LD/N1457177867Registered DietitianTampa, FL2024
Rachel O'Brien1497498406Social WorkerBoston, MA2022
Rachel O'Brien1548955115Student in an Organized Health Care Education/Training ProgramCleveland, OH2023
Rachel O'Brien, DNP, APRN, FNP-C1609701069Family Nurse PractitionerFargo, ND2026
Rachel O'Brien, M.S., CF-SLP1629769302Speech-Language PathologistWilmington, DE2023
Rachel O'Brien, CNP1841711876Nurse PractitionerCincinnati, OH2017
Raeanna O'Brien, LPCC-S1578012001Mental Health CounselorDublin, OH2016
Raina O'Brien1669845954Occupational Therapy AssistantMargate, FL2015
Randall O'Brien, M.D.1346236155SpecialistWaycross, GA2005
Randee O'Brien, DPT1720599038Physical TherapistWheat Ridge, CO2017
Randy O'Brien, DPT1508917410Physical TherapistGainesville, VA2007
Rani O'Brien, DDS, MSD1982859120DentistShelby Township, MI2008
Raymond O'Brien, LCSW1144472770Clinical Social WorkerNorth Las Vegas, NV2008
Rebecca O'Brien1134635014Registered DietitianWeston, CT2017
Rebecca O'Brien, MD1144339631Pediatrics PhysicianBoston, MA2006
Rebecca O'Brien1154209625Student in an Organized Health Care Education/Training ProgramLong Beach, CA2025
Rebecca O'Brien, O.D.1427113323OptometristOverland Park, KS2006
Rebecca O'Brien, MD1437223757Internal Medicine PhysicianFremont, CA2006
Rebecca O'Brien, LPN1467622126Licensed Practical NurseMontrose, NY2008
Rebecca O'Brien1780356907Behavior TechnicianChicago, IL2021
Rebecca O'Brien1871042945Massage TherapistBend, OR2016
Rebecca O'Brien, OD1881582260OptometristChillicothe, OH2025
Rebekah O'Brien1205526381Physical TherapistSuffolk, VA2023
Regan O'Brien, M.D.1578950978Psychiatry PhysicianScottsdale, AZ2015
Reghan O'Brien1366134413Physical Therapy AssistantRed Lion, PA2023
Regina O'Brien1205186251Day Training/Habilitation SpecialistHarrison, AR2012
Regina O'Brien, LPC1396414496Professional CounselorPhoenix, AZ2021
Regina O'Brien, LMT1861004723Massage TherapistGrants Pass, OR2020
Renee O'Brien, L.C.S.W.1033254479Clinical Social WorkerHemet, CA2007
Rhea O'Brien, OTR/L1649835877Occupational TherapistPittsfield, IL2019
Rhonda O'Brien, MS, RD1033243019Registered DietitianBoise, ID2007
Rhonda O'Brien, LPC1134337744Mental Health CounselorMena, AR2007
Richard O'Brien, DC1043316383ChiropractorWest Palm Beach, FL2006
Richard O'Brien, LMSW1225568496Clinical Social WorkerPleasanton, KS2017
Richard O'Brien, M.D.1275850752Pediatrics PhysicianHolladay, UT2010
Richard O'Brien, MD1316929938Neurology PhysicianColumbia, MD2005
Richard O'Brien, M.D.1346297306Neurology PhysicianDurham, NC2006
Richard O'Brien, D.D.S.1366414575ProsthodonticsSaint Louis, MO2006
Richard O'Brien1598005266Pulmonary Disease PhysicianDillon, CO2013
Richard O'Brien, M.D.1619084944SpecialistSan Diego, CA2006
Richard O'Brien, P.A.1740412642Physician AssistantAustin, TX2009
Rileigh O'Brien, MA SLP1184482481Speech-Language PathologistPittsfield, NH2024
Rita O'Brien, CRNA1780670992Certified Registered Nurse AnesthetistBinghamton, NY2005
Robert O'Brien, LLP1114132396Clinical PsychologistMuskegon, MI2007
Robert O'Brien1134557515Physical Therapy AssistantSarasota, FL2013
Robert O'Brien, MSW, LMSW1205837903Clinical Social WorkerPetoskey, MI2005
Robert O'Brien, PA-C1245654797Physician AssistantNew York, NY2014
Robert O'Brien, DC1255368981ChiropractorStratford, NJ2006
Robert O'Brien, LMFT1306696398Marriage & Family TherapistLos Angeles, CA2024
Robert O'Brien1457089898Occupational TherapistAmerican Fork, UT2022
Robert O'Brien1467504126General Practice DentistrySeverna Park, MD2007
Robert O'Brien1568566420Dermatology PhysicianWinchester, MA2006
Robert O'Brien, MD1578643441Orthopaedic Surgery PhysicianBranson, MO2006
Robert O'Brien, LPN1588857585Licensed Practical NurseMiddletown, OH2007
Robert O'Brien, R.P.T.1629065693Physical TherapistGreenwood, MS2005
Robert O'Brien, MSPT, ATC1821255530Physical TherapistLansdowne, PA2008
Robert O'Brien, MS, ATR1891001210Mental Health CounselorThornton, CO2010
Robert O'Brien, MA CMHC1891451324Mental Health CounselorLake Mary, FL2021
Robert O'Brien, D.M.D.1972940732DentistMacon, GA2013
Roberta O'Brien, FNP1316330889Family Nurse PractitionerCincinnati, OH2015
Roberta O'Brien1437714581Mental Health CounselorKenai, AK2019
Roberta O'Brien, RN, CDOE1619207461Diabetes Educator Registered NurseLincoln, RI2009
Roberta O'Brien, MD1902976533Internal Medicine PhysicianEssex Jct, VT2006
Robin O'Brien1063805141Peer SpecialistDenver, CO2015
Robyn O'Brien, MD1629050455Hospitalist PhysicianCincinnati, OH2005
Roderick O'Brien, M.D.1487686325Psychiatry PhysicianLouisville, CO2006
Roger O'Brien, SFIDC1093227985Independent Duty CorpsmanSan Diego, CA2017
Ronald O'Brien, D.D.S.1174673065DentistSan Jose, CA2007
Ronald O'Brien1639757701HomemakerSutton, WV2021
Rosalie O'Brien1003535816Family Nurse PractitionerRochester, NY2022
Rosanne O'Brien, RN1396864492Diabetes Educator Registered NurseDorchester, MA2007
Roselle O'Brien, LMHC1952809196Mental Health CounselorChestnut Hill, MA2018
Rosemarie O'Brien, R.N.1912163056Registered NursePort Jefferson Station, NY2008
Rosemary O'Brien, MA,LP1760587893PsychologistBrooklyn Center, MN2006
Russell O'Brien, FNP1174216295Family Nurse PractitionerBurbank, CA2023
Ruth O'Brien, PSYD1730486317PsychologistColorado Springs, CO2011
Ruthann O'Brien, MS OTR1871682922Occupational TherapistWilliamsburg, MI2006
Sabrina O'Brien, M.D.1699875013Internal Medicine PhysicianManning, SC2006
Sage O'Brien, CSW, LSAC1275848699Clinical Social WorkerSandy, UT2010
Salina O'Brien1235921446Behavior TechnicianBaton Rouge, LA2025
Sally O'Brien, L.I.C.S.W.1962564344Clinical Social WorkerFramingham, MA2006
Samantha O'Brien, PA-C1144965815Physician AssistantUrbana, IL2022
Samantha O'Brien1275281321Massage TherapistHanover, PA2022
Samantha O'Brien, PMHNP-BC1336848035Psychiatric/Mental Health Nurse PractitionerChicago, IL2023
Samantha O'Brien, L.AC., LMT1396025011AcupuncturistLake Oswego, OR2011
Samantha O'Brien1396244760Developmental TherapistDanvers, MA2018
Samantha O'Brien1437761939Behavior TechnicianDublin, OH2020
Samantha O'Brien1689393571Family Nurse PractitionerSkowhegan, ME2022
Samantha O'Brien1699356477Pharmacy TechnicianSan Antonio, TX2021
Samuel O'Brien1598681249Addiction (Substance Use Disorder) CounselorBristol, VT2026
Samuel O'Brien1780373183Student in an Organized Health Care Education/Training ProgramNew Haven, CT2023
Sandi O'Brien, MA, QMHP1114061629CounselorEugene, OR2007
Sandra O'Brien1083074553Adult Psychiatric/Mental Health Registered NurseGig Harbor, WA2016
Sandra O'Brien, P.T.1679726731Physical TherapistSan Diego, CA2008
Sandra O'Brien, N.P.1932423761Family Nurse PractitionerRockville, MD2010

Source: CMS National Plan and Provider Enumeration System (NPPES) (download.cms.gov). A listing is not a recommendation: check a license with the state board (license lookups).