2026 NPPES data Foot & Ankle Surgery Podiatrist NPI 1134657646 DPM
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Audris Tien, DPM

Foot & Ankle Surgery Podiatrist in Irvine, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 8,920 in Foot & Ankle Surgery Podiatrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
254
Medicare Part D claims · 155 beneficiaries · Foot & Ankle Surgery Podiatrist avg: 309
Industry payments
$328.81
7 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Audris Tien, DPM filed 254 Medicare Part D claims in 2023 as a Foot & Ankle Surgery Podiatrist in Irvine, California.

254
Part D claims, 2023
$328.81
industry payments (Sunshine Act)

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.

Audris Tien, DPM's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

254 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Audris Tien, DPM?

Quality data not reported

NPI registry status

Active

Issued 05/28/2017

NPI 1134657646

Primary specialty

Foot & Ankle Surgery Podiatrist

Mid-sized

8,920 US NPIs in this specialty

Medicare Part D claims

254 18% vs specialty avg

2023 prescription claims

Specialty avg: 309

Specialty distribution in California

How Foot & Ankle Surgery Podiatrist compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Foot & Ankle Surgery Podiatrist — 0.1%Foot & Ankle Surgery Podiatrist0.1%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Foot & Ankle Surgery Podiatrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Foot & Ankle Surgery Podiatrist ABMS/AOA estimate

Est. board-certified rate (Foot & Ankle Surgery Podiatrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Foot & Ankle Surgery Podiatrist) — 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).

Audris Tien, DPM appears in the CMS NPPES registry as a Foot & Ankle Surgery Podiatrist provider holding DPM credentials at 16405 SAND CANYON AVE STE 270, Irvine, CA, 92618, with a listed phone of (949) 651-1202. NPI 1134657646 was issued on 05/28/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Tien 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 254 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $15K 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.

Foot & Ankle Surgery Podiatrist is a mid-sized specialty nationwide, with 8,920 enrolled providers across 53 states and an average of 309 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

16405 SAND CANYON AVE STE 270
Irvine, CA 92618

Provider Details

NPI 1134657646
Specialty Foot & Ankle Surgery Podiatrist
Credentials DPM
Gender Female
NPI Issued 05/28/2017

Hospital and facility affiliations

Facilities where Audris Tien, DPM 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.

Foot And Ankle Specialist
Irvine, 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 Audris Tien, DPM. Source: openpaymentsdata.cms.gov.

Total received

$329

Largest payer

Stryker Corporation

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 Audris Tien, DPM. To verify Audris Tien, DPM'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.

254
Total Claims
$15K
Total Drug Cost
155
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
336
Total Day Supply
8,964
Generic Drug Cost
$7K
Antibiotic Claims
17

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.13
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

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

What Audris Tien, DPM prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Terbinafine Hcl
74
Ciclopirox
52
Ammonium Lactate
27
Diclofenac Sodium
15
Meloxicam
13

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

Foot & Ankle Surgery Podiatrist Overview

How Audris Tien, DPM fits within the Foot & Ankle Surgery Podiatrist landscape nationally.

8,920
Foot & Ankle Surgery Podiatrist Providers in US
53
States with Foot & Ankle Surgery Podiatrist
309
Avg Claims per Provider

Audris Tien, DPM's 254 claims are below the specialty average of 309.

Nearby Foot & Ankle Surgery Podiatrist Providers in California

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

Compare Foot & Ankle Surgery Podiatrist nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Foot & Ankle Surgery Podiatrist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Audris Tien, DPM's specialty?
Audris Tien, DPM specializes in Foot & Ankle Surgery Podiatrist and practices in Irvine, California. Credentials: DPM.
How much does Audris Tien, DPM prescribe under Medicare Part D?
In 2023, Audris Tien, DPM wrote 254 Medicare Part D claims totaling $15K in drug costs for 155 beneficiaries.
Where is Audris Tien, DPM located?
Audris Tien, DPM is located at 16405 SAND CANYON AVE STE 270, Irvine, CA, 92618. Phone: (949) 651-1202.
What is Audris Tien, DPM's NPI number?
Audris Tien, DPM's National Provider Identifier (NPI) is 1134657646, issued on 05/28/2017.
How many Foot & Ankle Surgery Podiatrist providers are there in the US?
There are 8,920 Foot & Ankle Surgery Podiatrist providers across 53 states in the US. The average Foot & Ankle Surgery Podiatrist provider writes 309 Medicare Part D claims per year.
What drugs does Audris Tien, DPM prescribe most often?
Based on 2023 Medicare Part D data, Audris Tien, DPM's most frequently prescribed drugs include Terbinafine Hcl, Ciclopirox, Ammonium Lactate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Audris Tien, DPM accept Medicare?
Audris Tien, DPM appears in CMS Medicare data with 254 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Audris Tien, DPM's credentials?
Audris Tien, DPM's NPI is 1134657646 with credentials DPM. 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

Compiled from official public sources by the PlainDoctor editorial team.