2026 NPPES data Surgery Physician NPI 1164637435 MD
Verify on CMS →

ANNA HOUTERMAN, MD

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
71
Medicare Part D claims · 41 beneficiaries · Surgery Physician avg: 169
MIPS score
90.815/100
▲ 8 pts above national avg 83.1 · [object Object]
Industry payments
$33.45
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANNA HOUTERMAN, MD reported a CMS MIPS final score of 90.815/100 — above the 83.1 national average — and filed 71 Medicare Part D claims in 2023.

90.815/100
MIPS score · +8 vs avg
71
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ANNA HOUTERMAN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

91 Top 40% higher than 60% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ANNA HOUTERMAN, 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).

What does the federal data show about ANNA HOUTERMAN, MD?

High performer (top quartile)

NPI registry status

Active

Issued 05/11/2007

NPI 1164637435

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

71 58% vs specialty avg

2023 prescription claims

Specialty avg: 169

MIPS final score

90.815/100 7.715000000000003% pts

Exceptional 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

ANNA HOUTERMAN, MD's 2023 MIPS final score plotted against the Surgery Physician national average

High performer (top quartile)
MIPS Final Score
90.815/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgery Physician) — 90.815/100 vs national avg 83.1

0%100%National avg83%90.8%
MIPS final score (Surgery Physician) — 90.815/100 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).

ANNA HOUTERMAN, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 24302 PASEO DE VALENCIA STE 201, LAGUNA HILLS, CA, 92653, with a listed phone of (949) 598-1701. NPI 1164637435 was issued on 05/11/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HOUTERMAN 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 71 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $562 in drug spend, with an opioid prescribing rate of 46.5%. 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 90.815/100 for the 2023 performance year (Quality 85.7976, Cost 80.848), 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

24302 PASEO DE VALENCIA STE 201
LAGUNA HILLS, CA 92653

Provider Details

NPI 1164637435
Specialty Surgery Physician
Credentials MD
Gender Female
NPI Issued 05/11/2007

CMS Quality Score (MIPS)

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

90.815
Final Score
Avg: 83.1
85.7976
Quality
80.848
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANNA HOUTERMAN, 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.

REGENTS OF THE UNIVERSITY OF CALIFORNIA LOS ANGELES
SANTA MONICA, 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 ANNA HOUTERMAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$33

Largest payer

ABBVIE 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 ANNA HOUTERMAN, MD. To verify ANNA HOUTERMAN, 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.

71
Total Claims
$562
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
73
Total Day Supply
549
Brand Drug Cost
$0
Generic Drug Cost
$562
Opioid Claims
33 (46.5% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.24

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
22
Tramadol Hcl
11

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

Surgery Physician Overview

How ANNA HOUTERMAN, MD fits within the Surgery Physician landscape nationally.

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

ANNA HOUTERMAN, MD's 71 claims are below 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 HOUTERMAN.

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

Frequently Asked Questions

What is ANNA HOUTERMAN, MD's specialty?
ANNA HOUTERMAN, MD specializes in Surgery Physician and practices in LAGUNA HILLS, California. Credentials: MD.
How much does ANNA HOUTERMAN, MD prescribe under Medicare Part D?
In 2023, ANNA HOUTERMAN, MD wrote 71 Medicare Part D claims totaling $562 in drug costs for 41 beneficiaries.
What is ANNA HOUTERMAN, MD's Medicare quality score?
ANNA HOUTERMAN, MD has a CMS MIPS Final Score of 90.815/100 (Quality: 85.7976, Cost: 80.848). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANNA HOUTERMAN, MD located?
ANNA HOUTERMAN, MD is located at 24302 PASEO DE VALENCIA STE 201, LAGUNA HILLS, CA, 92653. Phone: (949) 598-1701.
What is ANNA HOUTERMAN, MD's NPI number?
ANNA HOUTERMAN, MD's National Provider Identifier (NPI) is 1164637435, issued on 05/11/2007.
Does ANNA HOUTERMAN, MD prescribe opioids?
Yes, ANNA HOUTERMAN, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 46.5%.
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 ANNA HOUTERMAN, MD prescribe most often?
Based on 2023 Medicare Part D data, ANNA HOUTERMAN, MD's most frequently prescribed drugs include Oxycodone-Acetaminophen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANNA HOUTERMAN, MD accept Medicare?
ANNA HOUTERMAN, MD appears in CMS Medicare data with 71 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 ANNA HOUTERMAN, MD's credentials?
ANNA HOUTERMAN, MD's NPI is 1164637435 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