Karin O'Brien, APRN
NPI 1710909932 · Psychiatric/Mental Health Nurse Practitioner · Lady Lake, FL
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karin O'Brien, APRN is a Psychiatric/Mental Health Nurse Practitioner provider in Lady Lake, FL (NPI 1710909932).
Provider details
- NPI number
- 1710909932
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 172893 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
186 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 186 | $119 |
Typical Medicare-allowed amounts for these services range $119–$119 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 141 | 16 |
| Fluoxetine Hcl | 83 | 11 |
| Lorazepam | 71 | 11 |
| Quetiapine Fumarate | 69 | — |
| Lamotrigine | 64 | — |
| Alprazolam | 62 | — |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2022-02-07
- Certified
- 2022-01-28
Frequently asked questions
- What is Karin O'Brien's NPI number?
- Karin O'Brien's National Provider Identifier (NPI) is 1710909932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karin O'Brien's specialty?
- Karin O'Brien is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karin O'Brien located?
- Karin O'Brien's practice location on file with NPPES is 809 County Road 466, Lady Lake, FL 32159-4205.
- What is Karin O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Karin O'Brien is (352) 530-2256.
- Does Karin O'Brien accept Medicare?
- Karin O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karin O'Brien's NPI active?
- Yes — Karin O'Brien's NPI (1710909932) is active in the NPPES registry as of the last update on 2022-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.