NPPES file of Aug 9, 2026

Susan G. O'Brien, APN

Nurse Practitioner · Phoenix, AZ

Susan G. O'Brien, APN is a nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1225388176, issued on Sep 18, 2012. Check the license (Arizona 341302, as entered in NPPES) with the Arizona board that licenses this profession; 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
1225388176
Name
Susan G. O'Brien
Credential
APN
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
341302 AZ
209005704 IL
041322316 IL
Self-reported in NPPES; status is on the state search
Practice location
11209 N Tatum Blvd Ste 255, Phoenix, AZ 85028
Phone
(602) 494-5050
Enumerated
Sep 18, 2012
Record last updated
Aug 3, 2026
Medicare enrollment
Enrolled (PECOS I20130221000366); accepts Medicare assignment
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 11209 N Tatum Blvd Ste 255

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

  1. Tawany Almeida, MDObstetrics & Gynecology Physician1821625484
  2. Esther Apraku Bondzie, WHNPWomen's Health Nurse Practitioner1295515245
  3. Olivia Blackstone, DOObstetrics & Gynecology Physician1144858077
  4. Margaret Castor, WHNPWomen's Health Nurse Practitioner1275960585
  5. Allie Kosena, WHNP-BCWomen's Health Nurse Practitioner1063226751
  6. Susan Maland-Ludewig, WHNPObstetrics & Gynecology Nurse Practitioner1972794246

Verify Susan G. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 341302
    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
Find the Arizona license search

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93% fewer Medicare Part D claims than the average nurse practitioner in 2024

73 Medicare Part D claims for 32 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Susan O'Brien73
  2. Specialty average1,109

Most prescribed

  1. Estradiol23 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: $129.47

7 payments; by number, the most common kind was food and beverage; the largest payer was Exeltis, USA Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Susan O'Brien$129.47
  2. Specialty average$791.64

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

  1. Adventist Health Partners, Inc.Woodridge, IL

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

Nurse Practitioner providers in Arizona

There are 1,423 nurse practitioner records in Arizona.

Other nurse practitioner records in Arizona

  1. Emma Abbey, NP-CTucson, AZ1548822562
  2. Ashley Abell, MSN, RN, FNP-CScottsdale, AZ1679041099
  3. Meredith AbneyChandler, AZ1568392124
  4. Armando Abucejo, AGACNP-BCPhoenix, AZ1649785288
  5. Belinda Acosta, FNPTucson, AZ1386622660
  6. Caitlin Adamowicz, NPScottsdale, AZ1104583152
  7. Jamie AdamsFort Defiance, AZ1144007097
  8. Kalekia Adams, DNPScottsdale, AZ1619555034
  9. Rachael Adger, NPTucson, AZ1306806443
  10. Jacqueline Agenbroad, NPPhoenix, AZ1447222328

Common questions

What is Susan G. O'Brien, APN's NPI number?

Susan G. O'Brien, APN's National Provider Identifier (NPI) is 1225388176, issued on Sep 18, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Susan G. O'Brien, APN located?

The NPPES record lists a practice address at 11209 N Tatum Blvd Ste 255, Phoenix, AZ, 85028. Phone: (602) 494-5050. Providers update this record themselves, so call before visiting.

How can I verify Susan G. O'Brien, APN's license?

NPPES lists Arizona license number 341302, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Susan G. O'Brien, APN prescribe under Medicare Part D?

In 2024, Susan G. O'Brien, APN had 73 Medicare Part D claims for 32 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.