2026 NPPES data Research Study Specialist NPI 1023676632 MBBS
Verify on CMS →

AJIT VARKI, MBBS

Research Study Specialist in LA JOLLA, 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.
Industry payments
$900
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: AJIT VARKI, MBBS is a Research Study Specialist ([object Object]) practicing in LA JOLLA, California . Industry payments of $900 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: AJIT VARKI, MBBS specializes in Research Study Specialist and practices in LA JOLLA, California, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

AJIT VARKI, MBBS at a glance

Quality data not reported

NPI registry status

Active

Issued 05/30/2019

NPI 1023676632

Primary specialty

Research Study Specialist

Rare

472 US NPIs in this specialty

Specialty distribution in California

How Research Study Specialist compares to other specialties among California providers

California providers

Research Study Specialist share within California

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

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).

AJIT VARKI, MBBS is a Research Study Specialist provider practicing in LA JOLLA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MBBS. NPI: 1023676632. 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.

AJIT VARKI, MBBS appears in the CMS NPPES registry as a Research Study Specialist provider holding MBBS credentials at 9500 GILMAN DR # MC0687, LA JOLLA, CA, 92093, with a listed phone of (858) 534-2214. NPI 1023676632 was issued on 05/30/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VARKI 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Research Study Specialist providers operate outside Part D entirely.

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

9500 GILMAN DR # MC0687
LA JOLLA, CA 92093

Provider Details

NPI 1023676632
Specialty Research Study Specialist
Credentials MBBS
Gender Male
NPI Issued 05/30/2019

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 AJIT VARKI, MBBS. Source: openpaymentsdata.cms.gov.

Total received

$900

Largest payer

Biogen, Inc.

Most common payment type

Consulting Fee

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 AJIT VARKI, MBBS. To verify AJIT VARKI, MBBS'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.

Research Study Specialist Overview

How AJIT VARKI, MBBS 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

Nearby Research Study Specialist Providers in California

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

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

Frequently Asked Questions

What is AJIT VARKI, MBBS's specialty?
AJIT VARKI, MBBS specializes in Research Study Specialist and practices in LA JOLLA, California. Credentials: MBBS.
Where is AJIT VARKI, MBBS located?
AJIT VARKI, MBBS is located at 9500 GILMAN DR # MC0687, LA JOLLA, CA, 92093. Phone: (858) 534-2214.
What is AJIT VARKI, MBBS's NPI number?
AJIT VARKI, MBBS's National Provider Identifier (NPI) is 1023676632, issued on 05/30/2019.
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.
Does AJIT VARKI, MBBS accept Medicare?
AJIT VARKI, MBBS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AJIT VARKI, MBBS's credentials?
AJIT VARKI, MBBS's NPI is 1023676632 with credentials MBBS. 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.
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