NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1043558653 M.D.
Verify on CMS → Shanglei Liu, M.D.
Colon & Rectal Surgery Physician in San Diego, 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 1,608 in Colon & Rectal Surgery Physician, 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
93
Medicare Part D claims · 43 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$21.76
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Shanglei Liu, M.D. filed 93 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in San Diego, California, prescribing 83% generic.
- 93
- Part D claims, 2023
- 83%
- 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.
Shanglei Liu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
93 0th percentile higher than 0% of 1,370,886 prescribers
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)
Shanglei Liu, M.D. 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 Shanglei Liu, M.D.?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
93 53% vs specialty avg
Specialty distribution in California
How Colon & Rectal Surgery Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Colon & Rectal Surgery Physician. Verify directly:
How MIPS and board certification work
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).
Shanglei Liu, M.D. appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding M.D. credentials at 200 W ARBOR DR, San Diego, CA, 92103, with a listed phone of (800) 926-8273. NPI 1043558653 was issued on 01/17/2013.
Medicare Part D records for calendar year 2023 show 93 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $366K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 12.9%.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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
Provider Details
| NPI | 1043558653 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/17/2013 |
Hospital and facility affiliations
Facilities where Shanglei Liu, 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.
Regents OF The University OF California
San Diego, 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 Shanglei Liu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$22
Largest payer
Teleflex LLC
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 Shanglei Liu, M.D.. To verify Shanglei Liu, 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.
Brand vs generic prescribing mix · Typical
Shanglei Liu, M.D. - brand share 17.0%
Colon & Rectal Surgery Physician average
17% brand-name claims vs 83% generic, on 93 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.
93
Total Claims
$366K
Total Drug Cost
43
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 93
- Total Day Supply
- 945
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $365K
- Generic Drug Cost
- $1K
- Opioid Claims
- 12 (12.9% rate)
- Antibiotic Claims
- 38
Patient Demographics
- Average Patient Age
- 68.3 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 53% female / 47% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Shanglei Liu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metronidazole
Metronidazole
20 claims
- Neomycin Sulfate
Neomycin Sulfate
17 claims
- Oxycodone Hcl
Oxycodone Hcl
12 claims
| Drug | Claims |
|---|---|
| Metronidazole | 20 |
| Neomycin Sulfate | 17 |
| Oxycodone Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How Shanglei Liu, M.D. fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Shanglei Liu, M.D.'s 93 claims are below the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Liu.
Dr. Kenneth Aaron
M.D.
Newport Beach, CA
Dr. Michael Abel
M.D.
San Francisco, CA
Dr. Piyush Aggarwal
MD
Walnut Creek, CA
Dr. Allison Aka
MD
Loma Linda, CA
Dr. Ahmed Alkoraishi
MD
Hayward, CA
Compare Colon & Rectal Surgery Physician 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 Colon & Rectal Surgery Physician 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.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Shanglei Liu, M.D.'s specialty? ▼
Shanglei Liu, M.D. specializes in Colon & Rectal Surgery Physician and practices in San Diego, California. Credentials: M.D..
How much does Shanglei Liu, M.D. prescribe under Medicare Part D? ▼
In 2023, Shanglei Liu, M.D. wrote 93 Medicare Part D claims totaling $366K in drug costs for 43 beneficiaries.
Where is Shanglei Liu, M.D. located? ▼
Shanglei Liu, M.D. is located at 200 W ARBOR DR, San Diego, CA, 92103. Phone: (800) 926-8273.
What is Shanglei Liu, M.D.'s NPI number? ▼
Shanglei Liu, M.D.'s National Provider Identifier (NPI) is 1043558653, issued on 01/17/2013.
Does Shanglei Liu, M.D. prescribe more brand-name or generic drugs? ▼
Shanglei Liu, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $365K in brand drug costs.
Does Shanglei Liu, M.D. prescribe opioids? ▼
Yes, Shanglei Liu, M.D. had 12 opioid claims in 2023 with an opioid prescribing rate of 12.9%.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Shanglei Liu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Shanglei Liu, M.D.'s most frequently prescribed drugs include Metronidazole, Neomycin Sulfate, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shanglei Liu, M.D. accept Medicare? ▼
Shanglei Liu, M.D. appears in CMS Medicare data with 93 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shanglei Liu, M.D.'s credentials? ▼
Shanglei Liu, M.D.'s NPI is 1043558653 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
View source datasets and methodology notes
- 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.