Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HILLARY JANE LARKIN PA
NPI 1194716415
Clinical Nurse Specialist - Emergency in Oakland, CA

Q: What is Hillary Larkin's NPI number?

The NPI number for Hillary Larkin is 1194716415. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Q: What is Hillary Larkin's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Emergency, with taxonomy code 364SE0003X.

Q: When was this NPI record last updated?

The NPPES record for Hillary Larkin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 04, 2005PECOS Enrolled

91.04/100

CMS Quality Rating

1411 E 31ST ST, OAKLAND, CA 94602(209) 342-2300(209) 524-4240 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Hillary Jane Larkin Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HILLARY JANE LARKIN PA (NPI 1194716415) is an individual emergency provider in Oakland, California, licensed in California (PA11793) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194716415

Entity TypeIndividualFemale

Primary Taxonomy364SE0003X

Provider Legal NameHILLARY JANE LARKINCredential: PA

Location Address1411 E 31ST STOakland, CA 94602-1018

Mailing Address4301 Northstar WayModesto, CA 95356-9262 · (209) 341-2300 · Fax (209) 524-4240

Phone(209) 342-2300

Fax(209) 524-4240

Sole ProprietorNo

Enumeration DateNovember 4, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1194716415 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Nurse Specialist · EmergencyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code364SE0003X

License✔ Licensed in CA · PA11793

1411 E 31ST ST, Oakland, CA 94602

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Other Identifiers 1

MedicaidOPA117930CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hillary Jane Larkin Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

37 services36 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

34 services34 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94602 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.04/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

82.13

Promoting Interoperability

100

Improvement Activities

Cost

64.1

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. YVONNE DIANE ESCARSEGA MSW

Social Worker (Clinical)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4373

MR. JUAN CASILLAS JR. NP

Nurse Practitioner (Family)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4800

SADHANA SAMANT MD

Obstetrics & Gynecology

1411 E 31ST ST, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602

Alameda County (510) 437-4323

PATRICIA SCOTT MEYER PA

Clinical Nurse Specialist (Emergency)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (209) 342-2300

NATHALIE BALOGUN MSW MPH

Social Worker (Clinical)

1411 E 31ST ST, ALAMEDA COUNTY MEDICAL CENTER - MEDICAL SOCAL WORK SRVC
OAKLAND, CA 94602

Alameda County (510) 437-4949

CYNTHIA MARIE ROWDEN RN

Registered Nurse (Ambulatory Care)

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4373

DR. KAYLA ENRIQUEZ MD

Emergency Medicine

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4564

DR. CHERYL LIN PARK M.D.

Surgery

1411 E 31ST ST
OAKLAND, CA 94602

Alameda County (510) 437-4743

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hillary Larkin's NPI number?

The NPI number for Hillary Larkin is 1194716415. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Where is Hillary Larkin located?

Hillary Larkin practices at 1411 E 31st St, Oakland, CA 94602. The listed phone number is (209) 342-2300.

What is Hillary Larkin's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Emergency, with taxonomy code 364SE0003X.

Is Hillary Larkin enrolled in Medicare?

Yes. Hillary Larkin is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Hillary Larkin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.