2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1891942512 MD
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CHRISTINA LIAO, MD

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in TORRANCE, 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
768
Medicare Part D claims · 262 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 611
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.1K
12 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHRISTINA LIAO, MD filed 768 Medicare Part D claims in 2023 as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in TORRANCE, California, prescribing 59% generic.

768
Part D claims, 2023
59%
generic prescribing
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.

CHRISTINA LIAO, MD's Medicare Part D volume vs every U.S. prescriber

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

768 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

CHRISTINA LIAO, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 CHRISTINA LIAO, MD?

Quality data not reported

NPI registry status

Active

Issued 08/25/2008

NPI 1891942512

Primary specialty

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician

Niche

568 US NPIs in this specialty

Medicare Part D claims

768 26% vs specialty avg

2023 prescription claims

Specialty avg: 611

Specialty distribution in California

How Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician compares to other specialties among California providers

California providers

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within California

1. Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician ABMS/AOA estimate

Est. board-certified rate (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — 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 LIAO, MD is a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider practicing in TORRANCE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1891942512. 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 LIAO, MD appears in the CMS NPPES registry as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider holding MD credentials at 1000 W CARSON ST # 489, TORRANCE, CA, 90502, with a listed phone of (310) 222-3868. NPI 1891942512 was issued on 08/25/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIAO 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 768 prescription claims written by this provider, covering 262 Medicare beneficiaries and totaling roughly $212K in drug spend, split 41% brand-name and 59% generic by claim count, with an opioid prescribing rate of 4.2%. 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.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician is a narrow specialty nationwide, with 568 enrolled providers across 49 states and an average of 611 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

1000 W CARSON ST # 489
TORRANCE, CA 90502

Provider Details

NPI 1891942512
Specialty Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Credentials MD
Gender Female
NPI Issued 08/25/2008

Hospital and facility affiliations

Facilities where CHRISTINA LIAO, 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
BELLFLOWER, 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 CHRISTINA LIAO, MD. Source: openpaymentsdata.cms.gov.

Total received

$4.1K

Largest payer

INTUITIVE SURGICAL, INC.

Most common payment type

Travel and Lodging

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 CHRISTINA LIAO, MD. To verify CHRISTINA LIAO, 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.

Brand vs generic prescribing mix · Above average

CHRISTINA LIAO, MD — brand share 41.0%
Specialty average (est.)

41% brand-name claims vs 59% generic, on 768 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

768
Total Claims
$212K
Total Drug Cost
262
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,413
Total Day Supply
37,227
Brand vs Generic
41% brand / 59% generic
Brand Drug Cost
$197K
Generic Drug Cost
$15K
Opioid Claims
32 (4.2% rate)
Antibiotic Claims
137

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.03
Age Distribution
<65: 11, 65-74: 133, 75-84: 99, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Myrbetriq
Mirabegron
260
Estradiol
157
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
58
Cephalexin
53
Tramadol Hcl
29
Estring
Estradiol
28
Ibuprofen
26
Methenamine Hippurate
25
Trospium Chloride
23
Clobetasol Propionate
17

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

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Overview

How CHRISTINA LIAO, MD fits within the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician landscape nationally.

568
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in US
49
States with Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
611
Avg Claims per Provider

CHRISTINA LIAO, MD's 768 claims are above the specialty average of 611.

Nearby Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in California

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

Compare Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA LIAO, MD's specialty?
CHRISTINA LIAO, MD specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in TORRANCE, California. Credentials: MD.
How much does CHRISTINA LIAO, MD prescribe under Medicare Part D?
In 2023, CHRISTINA LIAO, MD wrote 768 Medicare Part D claims totaling $212K in drug costs for 262 beneficiaries.
Where is CHRISTINA LIAO, MD located?
CHRISTINA LIAO, MD is located at 1000 W CARSON ST # 489, TORRANCE, CA, 90502. Phone: (310) 222-3868.
What is CHRISTINA LIAO, MD's NPI number?
CHRISTINA LIAO, MD's National Provider Identifier (NPI) is 1891942512, issued on 08/25/2008.
Does CHRISTINA LIAO, MD prescribe more brand-name or generic drugs?
CHRISTINA LIAO, MD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $197K in brand drug costs.
Does CHRISTINA LIAO, MD prescribe opioids?
Yes, CHRISTINA LIAO, MD had 32 opioid claims in 2023 with an opioid prescribing rate of 4.2%.
How many Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers are there in the US?
There are 568 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers across 49 states in the US. The average Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider writes 611 Medicare Part D claims per year.
What drugs does CHRISTINA LIAO, MD prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA LIAO, MD's most frequently prescribed drugs include Myrbetriq, Estradiol, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA LIAO, MD accept Medicare?
CHRISTINA LIAO, MD appears in CMS Medicare data with 768 Part D claims and 262 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA LIAO, MD's credentials?
CHRISTINA LIAO, MD's NPI is 1891942512 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.
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