2026 NPPES data Surgery Physician NPI 1235150079 M.D.
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BLAKE ASHLEY, M.D.

Surgery Physician in LAGUNA 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
187
Medicare Part D claims · 121 beneficiaries · Surgery Physician avg: 169
MIPS score
86.0645/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$287.26
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: BLAKE ASHLEY, M.D. is a Surgery Physician ([object Object]) practicing in LAGUNA HILLS, California with a Medicare Part D prescribing footprint of 187 claims across 121 beneficiaries . Their CMS MIPS Final Score of 86.0645/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $287.26 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: BLAKE ASHLEY, M.D. reported a CMS MIPS final score of 86.0645 out of 100, above the 83.1 national average, and filed 187 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)

BLAKE ASHLEY, M.D. 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).

BLAKE ASHLEY, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 07/21/2006

NPI 1235150079

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

187 11% vs specialty avg

2023 prescription claims

Specialty avg: 169

MIPS final score

86.0645/100 2.964500000000001% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Surgery Physician compares to other specialties among California providers

California providers

Surgery Physician share within California

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

Medicare quality performance — MIPS

BLAKE ASHLEY, M.D.'s 2023 MIPS final score plotted against the Surgery Physician national average

High performer (top quartile)
MIPS Final Score
86.0645/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgery Physician) — 86.0645/100 vs national avg 83.1

0%100%National avg83%86.1%
MIPS final score (Surgery Physician) — 86.0645/100 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).

BLAKE ASHLEY, M.D. is a Surgery Physician provider practicing in LAGUNA HILLS, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1235150079. 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.

BLAKE ASHLEY, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 24411 HEALTH CENTER DR, LAGUNA HILLS, CA, 92653, with a listed phone of (949) 457-7900. NPI 1235150079 was issued on 07/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ASHLEY 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 187 prescription claims written by this provider, covering 121 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 68.4%. 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 86.0645/100 for the 2023 performance year (Quality 80.7704, Cost 64.0709), compared with the national average of 83.1.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

24411 HEALTH CENTER DR
LAGUNA HILLS, CA 92653

Provider Details

NPI 1235150079
Specialty Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 07/21/2006

CMS Quality Score (MIPS)

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

86.0645
Final Score
Avg: 83.1
80.7704
Quality
64.0709
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where BLAKE ASHLEY, M.D. 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.

SOUTH ORANGE COUNTY SURGICAL MEDICAL GROUP INC
LAGUNA HILLS, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BLAKE ASHLEY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$287

Largest payer

Davol Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 BLAKE ASHLEY, M.D.. To verify BLAKE ASHLEY, M.D.'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.

187
Total Claims
$2K
Total Drug Cost
121
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
191
Total Day Supply
1,075
Generic Drug Cost
$2K
Opioid Claims
128 (68.4% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.60
Gender Split
50% female / 50% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Tramadol Hcl
60
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
56
Naloxone Hcl
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Surgery Physician Overview

How BLAKE ASHLEY, M.D. fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

BLAKE ASHLEY, M.D.'s 187 claims are above the specialty average of 169.

Nearby Surgery Physician Providers in California

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

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

Frequently Asked Questions

What is BLAKE ASHLEY, M.D.'s specialty?
BLAKE ASHLEY, M.D. specializes in Surgery Physician and practices in LAGUNA HILLS, California. Credentials: M.D..
How much does BLAKE ASHLEY, M.D. prescribe under Medicare Part D?
In 2023, BLAKE ASHLEY, M.D. wrote 187 Medicare Part D claims totaling $2K in drug costs for 121 beneficiaries.
What is BLAKE ASHLEY, M.D.'s Medicare quality score?
BLAKE ASHLEY, M.D. has a CMS MIPS Final Score of 86.0645/100 (Quality: 80.7704, Cost: 64.0709). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BLAKE ASHLEY, M.D. located?
BLAKE ASHLEY, M.D. is located at 24411 HEALTH CENTER DR, LAGUNA HILLS, CA, 92653. Phone: (949) 457-7900.
What is BLAKE ASHLEY, M.D.'s NPI number?
BLAKE ASHLEY, M.D.'s National Provider Identifier (NPI) is 1235150079, issued on 07/21/2006.
Does BLAKE ASHLEY, M.D. prescribe opioids?
Yes, BLAKE ASHLEY, M.D. had 128 opioid claims in 2023 with an opioid prescribing rate of 68.4%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does BLAKE ASHLEY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BLAKE ASHLEY, M.D.'s most frequently prescribed drugs include Tramadol Hcl, Hydrocodone-Acetaminophen, Naloxone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BLAKE ASHLEY, M.D. accept Medicare?
BLAKE ASHLEY, M.D. appears in CMS Medicare data with 187 Part D claims and 121 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BLAKE ASHLEY, M.D.'s credentials?
BLAKE ASHLEY, M.D.'s NPI is 1235150079 with credentials M.D.. 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