2026 NPPES data Research Study Specialist NPI 1114041274 M.D.
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ROBERT LITMAN, M.D.

Research Study Specialist in ROCKVILLE, Maryland. 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
25
Medicare Part D claims · Research Study Specialist avg: 601
What the federal data reveals: ROBERT LITMAN, M.D. is a Research Study Specialist ([object Object]) practicing in ROCKVILLE, Maryland with a Medicare Part D prescribing footprint of 25 claims .

What stands out: ROBERT LITMAN, M.D. filed 25 Medicare Part D claims in 2023 across ROCKVILLE, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ROBERT LITMAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 03/16/2007

NPI 1114041274

Primary specialty

Research Study Specialist

Rare

472 US NPIs in this specialty

Medicare Part D claims

25 96% vs specialty avg

2023 prescription claims

Specialty avg: 601

Specialty distribution in Maryland

How Research Study Specialist compares to other specialties among Maryland providers

Maryland providers

Research Study Specialist share within Maryland

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

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).

ROBERT LITMAN, M.D. is a Research Study Specialist provider practicing in ROCKVILLE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1114041274. 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.

ROBERT LITMAN, M.D. appears in the CMS NPPES registry as a Research Study Specialist provider holding M.D. credentials at 9605 MEDICAL CENTER DR, ROCKVILLE, MD, 20850, with a listed phone of (301) 251-4702. NPI 1114041274 was issued on 03/16/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LITMAN 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 25 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $207 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

9605 MEDICAL CENTER DR
ROCKVILLE, MD 20850

Provider Details

NPI 1114041274
Specialty Research Study Specialist
Credentials M.D.
Gender Male
NPI Issued 03/16/2007

Medicare Part D Prescribing Data

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

25
Total Claims
$207
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
25
Total Day Supply
712
Brand Drug Cost
$0
Generic Drug Cost
$207

Patient Demographics

Average Patient Age
56.0 years
Avg HCC Risk Score
1.73

Research Study Specialist Overview

How ROBERT LITMAN, 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

ROBERT LITMAN, M.D.'s 25 claims are below the specialty average of 601.

Nearby Research Study Specialist Providers in Maryland

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

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

Frequently Asked Questions

What is ROBERT LITMAN, M.D.'s specialty?
ROBERT LITMAN, M.D. specializes in Research Study Specialist and practices in ROCKVILLE, Maryland. Credentials: M.D..
How much does ROBERT LITMAN, M.D. prescribe under Medicare Part D?
In 2023, ROBERT LITMAN, M.D. wrote 25 Medicare Part D claims totaling $207 in drug costs for N/A beneficiaries.
Where is ROBERT LITMAN, M.D. located?
ROBERT LITMAN, M.D. is located at 9605 MEDICAL CENTER DR, ROCKVILLE, MD, 20850. Phone: (301) 251-4702.
What is ROBERT LITMAN, M.D.'s NPI number?
ROBERT LITMAN, M.D.'s National Provider Identifier (NPI) is 1114041274, issued on 03/16/2007.
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 ROBERT LITMAN, M.D. accept Medicare?
ROBERT LITMAN, M.D. appears in CMS Medicare data with 25 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 ROBERT LITMAN, M.D.'s credentials?
ROBERT LITMAN, M.D.'s NPI is 1114041274 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