2026 NPPES data Research Study Specialist NPI 1245406677 M.D.
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TONG LI, M.D.

Research Study Specialist in HAMILTON, New Jersey. 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
54
Medicare Part D claims · Research Study Specialist avg: 601

What the federal data shows

TONG LI, M.D. filed 54 Medicare Part D claims in 2023 as a Research Study Specialist in HAMILTON, New Jersey.

54
Part D claims, 2023

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.

TONG LI, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

54 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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 TONG LI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/06/2008

NPI 1245406677

Primary specialty

Research Study Specialist

Rare

472 US NPIs in this specialty

Medicare Part D claims

54 91% vs specialty avg

2023 prescription claims

Specialty avg: 601

Specialty distribution in New Jersey

How Research Study Specialist compares to other specialties among New Jersey providers

New Jersey providers

Research Study Specialist share within New Jersey

1. Research Study Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Research Study Specialist share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Research Study Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Research Study Specialist ABMS/AOA estimate

Est. board-certified rate (Research Study Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Research Study Specialist) — 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).

TONG LI, M.D. is a Research Study Specialist provider practicing in HAMILTON, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1245406677. 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.

TONG LI, M.D. appears in the CMS NPPES registry as a Research Study Specialist provider holding M.D. credentials at 2065 KLOCKNER RD, HAMILTON, NJ, 08690, with a listed phone of (609) 586-1001. NPI 1245406677 was issued on 05/06/2008. 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 54 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $3K 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.

Research Study Specialist is a narrow specialty nationwide, with 472 enrolled providers across 41 states and an average of 601 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

2065 KLOCKNER RD
HAMILTON, NJ 08690

Provider Details

NPI 1245406677
Specialty Research Study Specialist
Credentials M.D.
Gender Male
NPI Issued 05/06/2008

Medicare Part D Prescribing Data

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

54
Total Claims
$3K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
80
Total Day Supply
2,318
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
81.0 years
Avg HCC Risk Score
3.56

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Finasteride
13
Levothyroxine Sodium
13
Quetiapine Fumarate
12

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

Research Study Specialist Overview

How TONG LI, M.D. fits within the Research Study Specialist landscape nationally.

472
Research Study Specialist Providers in US
41
States with Research Study Specialist
601
Avg Claims per Provider

TONG LI, M.D.'s 54 claims are below the specialty average of 601.

Nearby Research Study Specialist 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 Research Study Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TONG LI, M.D.'s specialty?
TONG LI, M.D. specializes in Research Study Specialist and practices in HAMILTON, New Jersey. Credentials: M.D..
How much does TONG LI, M.D. prescribe under Medicare Part D?
In 2023, TONG LI, M.D. wrote 54 Medicare Part D claims totaling $3K in drug costs for N/A beneficiaries.
Where is TONG LI, M.D. located?
TONG LI, M.D. is located at 2065 KLOCKNER RD, HAMILTON, NJ, 08690. Phone: (609) 586-1001.
What is TONG LI, M.D.'s NPI number?
TONG LI, M.D.'s National Provider Identifier (NPI) is 1245406677, issued on 05/06/2008.
How many Research Study Specialist providers are there in the US?
There are 472 Research Study Specialist providers across 41 states in the US. The average Research Study Specialist provider writes 601 Medicare Part D claims per year.
What drugs does TONG LI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TONG LI, M.D.'s most frequently prescribed drugs include Finasteride, Levothyroxine Sodium, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TONG LI, M.D. accept Medicare?
TONG LI, M.D. appears in CMS Medicare data with 54 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TONG LI, M.D.'s credentials?
TONG LI, M.D.'s NPI is 1245406677 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

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