NPPES file of Aug 9, 2026

Michael P. O'Brien, MD

Family Medicine Physician · Reno, NV

Michael P. O'Brien, MD is a family medicine physician with a practice address in Reno, Nevada, and NPI 1598907453, issued on Mar 24, 2009. Check the license (Nevada 14263, as entered in NPPES) on the Nevada State Board of Medical Examiners; 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
1598907453
Name
Michael P. O'Brien
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
14263 NV
Self-reported in NPPES; status is on the state search
Practice location
5575 Kietzke LN, Reno, NV 89511
Phone
(775) 851-1505
Enumerated
Mar 24, 2009
Record last updated
May 8, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(775) 851-1583
Medicare enrollment
Enrolled (PECOS I20120816000058); accepts Medicare assignment
Medical or professional school
University Of Nevada School Of Medicine, 2009
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 5575 Kietzke LN

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

  1. Jocelyn Allen, APRNFamily Nurse Practitioner1184232951
  2. Chelsea Chambers, FNP-BCFamily Nurse Practitioner1194507855
  3. Kalin HueftleFamily Nurse Practitioner1285493544
  4. Kaylie Humphreys, FNPFamily Nurse Practitioner1528676426
  5. Christopher Mathis, MDFamily Medicine Physician1407826282
  6. Marie McCormack, MDFamily Medicine Physician1033178637

Verify Michael P. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license 14263
    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 Nevada 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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2.4 times the Medicare Part D claims of the average family medicine physician in 2024

8,355 Medicare Part D claims for 494 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 212 claims were for opioids.

  1. Michael O'Brien8,355
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium629 claims
  2. Levothyroxine Sodium290 claims
  3. Amlodipine Besylate208 claims
  4. Lisinopril203 claims
  5. Losartan Potassium201 claims
  6. Losartan-Hydrochlorothiazide187 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: $3,011.95

168 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael O'Brien$3,011.95
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Custom Physical Therapy Limited PartnershipReno, NV
  2. Northern Nevada Medical Group LLCSparks, NV

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

Michael P. O'Brien among 1,243 family medicine physician records in Nevada

Michael P. O'Brien, MD is one of 1,243 family medicine physician records with a practice address in Nevada. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 56% of them.

  • NPI issued2009 · 56% of these records are older, 41% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2009 · median 2008 among the 726 with a school on file
  • Record last updated2018 · 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 207Q00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

211 family medicine physician records list a practice address in Reno

They are 211 of the 11,565 NPPES records with a practice address in Reno, and 1,243 family medicine physician records in Nevada.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vance Alm, MDReno, NV 895111578540951
  2. Grant Anderson, M.D.Reno, NV 895111629029889
  3. Darla Bryant, MDReno, NV 895111154394427
  4. Timothy Coughlin, MDReno, NV 895111487740460
  5. Clifford Field, M.D.Reno, NV 895111588681084
  6. Ryan Gini, M.D.Reno, NV 895111164471769
  7. Christopher Mathis, MDReno, NV 895111407826282
  8. Marie McCormack, MDReno, NV 895111033178637

Common questions

What is Michael P. O'Brien, MD's NPI number?

Michael P. O'Brien, MD's National Provider Identifier (NPI) is 1598907453, issued on Mar 24, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Michael P. O'Brien, MD located?

The NPPES record lists a practice address at 5575 Kietzke LN, Reno, NV, 89511. Phone: (775) 851-1505. Providers update this record themselves, so call before visiting.

How can I verify Michael P. O'Brien, MD's license?

NPPES lists Nevada license number 14263, 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 Michael P. O'Brien, MD prescribe under Medicare Part D?

In 2024, Michael P. O'Brien, MD had 8,355 Medicare Part D claims for 494 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.