2026 NPPES data Physician Assistant NPI 1912555079 PA-C
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CHRISTINA BUSH, PA-C

Physician Assistant in MISSION HILLS, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
52
Medicare Part D claims · 41 beneficiaries · Physician Assistant avg: 790
What the federal data reveals: CHRISTINA BUSH, PA-C is a Physician Assistant ([object Object]) practicing in MISSION HILLS, California with a Medicare Part D prescribing footprint of 52 claims across 41 beneficiaries .

What stands out: CHRISTINA BUSH, PA-C filed 52 Medicare Part D claims in 2023 across MISSION HILLS, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CHRISTINA BUSH, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 08/30/2019

NPI 1912555079

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

52 93% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in California

How Physician Assistant compares to other specialties among California providers

California providers

Physician Assistant share within California

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within California

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

CHRISTINA BUSH, PA-C is a Physician Assistant provider practicing in MISSION HILLS, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1912555079. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CHRISTINA BUSH, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 15031 RINALDI ST, MISSION HILLS, CA, 91345, with a listed phone of (916) 316-8178. NPI 1912555079 was issued on 08/30/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUSH most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 52 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 21.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

15031 RINALDI ST
MISSION HILLS, CA 91345

Provider Details

NPI 1912555079
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 08/30/2019

Hospital and facility affiliations

Facilities where CHRISTINA BUSH, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SHASTA ORTHOPEDICS AND SPORTS MEDICINE A MEDICAL CORPORATION
REDDING, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to CHRISTINA BUSH, PA-C. To verify CHRISTINA BUSH, PA-C's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

52
Total Claims
$1K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
52
Total Day Supply
516
Generic Drug Cost
$320
Opioid Claims
11 (21.2% rate)

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
2.12
Gender Split
66% female / 34% male

Physician Assistant Overview

How CHRISTINA BUSH, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

CHRISTINA BUSH, PA-C's 52 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as BUSH.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA BUSH, PA-C's specialty?
CHRISTINA BUSH, PA-C specializes in Physician Assistant and practices in MISSION HILLS, California. Credentials: PA-C.
How much does CHRISTINA BUSH, PA-C prescribe under Medicare Part D?
In 2023, CHRISTINA BUSH, PA-C wrote 52 Medicare Part D claims totaling $1K in drug costs for 41 beneficiaries.
Where is CHRISTINA BUSH, PA-C located?
CHRISTINA BUSH, PA-C is located at 15031 RINALDI ST, MISSION HILLS, CA, 91345. Phone: (916) 316-8178.
What is CHRISTINA BUSH, PA-C's NPI number?
CHRISTINA BUSH, PA-C's National Provider Identifier (NPI) is 1912555079, issued on 08/30/2019.
Does CHRISTINA BUSH, PA-C prescribe opioids?
Yes, CHRISTINA BUSH, PA-C had 11 opioid claims in 2023 with an opioid prescribing rate of 21.2%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
Does CHRISTINA BUSH, PA-C accept Medicare?
CHRISTINA BUSH, PA-C appears in CMS Medicare data with 52 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA BUSH, PA-C's credentials?
CHRISTINA BUSH, PA-C's NPI is 1912555079 with credentials PA-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology