THOMAS LI, M.D.
Gastroenterology Physician in FORT LEE, New Jersey. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
THOMAS LI, M.D. filed 287 Medicare Part D claims in 2023 as a Gastroenterology Physician in FORT LEE, New Jersey, prescribing 91% generic.
- 287
- Part D claims, 2023
- 91%
- generic prescribing
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.
THOMAS LI, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
287 49th percentile higher than 49% 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
THOMAS LI, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about THOMAS LI, M.D.?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in New Jersey
How Gastroenterology Physician compares to other specialties among New Jersey providers
Gastroenterology Physician share within New Jersey
Gastroenterology Physician is one of the more visible NUCC categories in New Jersey
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Gastroenterology Physician ABMS/AOA estimate
Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Gastroenterology Physician US NPIs
Specialty board-certified rate — Gastroenterology Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
THOMAS LI, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 2231 LEMOINE AVE, FORT LEE, NJ, 07024, with a listed phone of (201) 944-1008. NPI 1821053000 was issued on 04/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LI 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 287 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $8K in drug spend, split 9% brand-name and 91% generic by claim count. 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.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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 | 1821053000 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/19/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm THOMAS LI, M.D.'s current license status, disciplinary history, and board certifications with the New Jersey State Board of Medical Examiners in New Jersey before relying on this page for a clinical or care decision.
How we sourced this profile
Brand vs generic prescribing mix · Generic-heavy
9% brand-name claims vs 91% generic, on 287 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.
Prescribing Breakdown
- 30-Day Fills
- 712
- Total Day Supply
- 19,438
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $1K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 72.2 years
- Avg HCC Risk Score
- 0.71
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What THOMAS LI, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
57 claims
- Amlodipine Besylate
Amlodipine Besylate
38 claims
- Peg 3350-Electrolyte
Peg 3350-Electrolyte
27 claims
- Losartan Potassium
Losartan Potassium
25 claims
- Metformin Hcl 17
Metformin Hcl
17 claims
- Enalapril Maleate 16
Enalapril Maleate
16 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 57 |
| Amlodipine Besylate | 38 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 27 |
| Losartan Potassium | 25 |
| Metformin Hcl | 17 |
| Enalapril Maleate | 16 |
| Gavilyte-G "Peg3350/Sod Sulf | N/A |
| Sod Sulf-Potass Sulf-Mag Sulf "Sodium | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How THOMAS LI, M.D. fits within the Gastroenterology Physician landscape nationally.
THOMAS LI, M.D.'s 287 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as LI.
Compare Gastroenterology Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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