2026 NPPES data Orthopaedic Surgery Physician NPI 1356396402 MD
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EDWARD CAHILL, MD

Orthopaedic Surgery Physician in STOCKTON, 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
34
Medicare Part D claims · 14 beneficiaries · Orthopaedic Surgery Physician avg: 324
MIPS score
80.1937/100
▼ 3 pts below national avg 83.1 · [object Object]
What the federal data reveals: EDWARD CAHILL, MD is a Orthopaedic Surgery Physician ([object Object]) practicing in STOCKTON, California with a Medicare Part D prescribing footprint of 34 claims across 14 beneficiaries . Their CMS MIPS Final Score of 80.1937/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: EDWARD CAHILL, MD reported a CMS MIPS final score of 80.1937 out of 100, below the 83.1 national average, and filed 34 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

EDWARD CAHILL, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

EDWARD CAHILL, MD at a glance

Near national average

NPI registry status

Active

Issued 05/24/2006

NPI 1356396402

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

34 90% vs specialty avg

2023 prescription claims

Specialty avg: 324

MIPS final score

80.1937/100 2.9062999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Orthopaedic Surgery Physician compares to other specialties among California providers

California providers

Orthopaedic Surgery Physician share within California

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within California

Medicare quality performance — MIPS

EDWARD CAHILL, MD's 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average

Near national average
MIPS Final Score
80.1937/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Orthopaedic Surgery Physician) — 80.1937/100 vs national avg 83.1

0%100%National avg83%80.2%
MIPS final score (Orthopaedic Surgery Physician) — 80.1937/100 vs national avg 83.1

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).

EDWARD CAHILL, MD is a Orthopaedic Surgery Physician provider practicing in STOCKTON, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1356396402. 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.

EDWARD CAHILL, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 2488 N CALIFORNIA ST, STOCKTON, CA, 95204, with a listed phone of (209) 948-3333. NPI 1356396402 was issued on 05/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CAHILL 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 34 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $762 in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.1937/100 for the 2023 performance year (Quality 45.9677, Cost 89.4567), compared with the national average of 83.1.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

2488 N CALIFORNIA ST
STOCKTON, CA 95204

Provider Details

NPI 1356396402
Specialty Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 05/24/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

80.1937
Final Score
Avg: 83.1
45.9677
Quality
89.4567
Cost
93
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where EDWARD CAHILL, MD 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.

MARK TWAIN MEDICAL CENTER
★★★☆☆ 3/5
SAN ANDREAS, CA
Critical Access Hospitals
CMS CCN: 051332

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 EDWARD CAHILL, MD. To verify EDWARD CAHILL, MD'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.

34
Total Claims
$762
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37
Total Day Supply
890
Brand Drug Cost
$0
Generic Drug Cost
$762

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.95

Orthopaedic Surgery Physician Overview

How EDWARD CAHILL, MD fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

EDWARD CAHILL, MD's 34 claims are below the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in California

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

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is EDWARD CAHILL, MD's specialty?
EDWARD CAHILL, MD specializes in Orthopaedic Surgery Physician and practices in STOCKTON, California. Credentials: MD.
How much does EDWARD CAHILL, MD prescribe under Medicare Part D?
In 2023, EDWARD CAHILL, MD wrote 34 Medicare Part D claims totaling $762 in drug costs for 14 beneficiaries.
What is EDWARD CAHILL, MD's Medicare quality score?
EDWARD CAHILL, MD has a CMS MIPS Final Score of 80.1937/100 (Quality: 45.9677, Cost: 89.4567). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is EDWARD CAHILL, MD located?
EDWARD CAHILL, MD is located at 2488 N CALIFORNIA ST, STOCKTON, CA, 95204. Phone: (209) 948-3333.
What is EDWARD CAHILL, MD's NPI number?
EDWARD CAHILL, MD's National Provider Identifier (NPI) is 1356396402, issued on 05/24/2006.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
Does EDWARD CAHILL, MD accept Medicare?
EDWARD CAHILL, MD appears in CMS Medicare data with 34 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EDWARD CAHILL, MD's credentials?
EDWARD CAHILL, MD's NPI is 1356396402 with credentials MD. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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