NPI registry status
Active
2026 NPPES data Research Study Specialist NPI 1114041274 M.D.
Verify on CMS → Robert Litman, M.D.
Research Study Specialist in Rockville, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 508 in Research Study Specialist, 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
41
Medicare Part D claims · Research Study Specialist avg: 922
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Robert Litman, M.D. filed 41 Medicare Part D claims in 2024 as a Research Study Specialist in Rockville, Maryland.
- 41
- Part D claims, 2024
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Robert Litman, M.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1114041274), first enumerated 03/16/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 41 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1114041274 · Research Study Specialist
NPI-10 · ENUM-MID · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1114041274
- ENUM-MID 2007
- TAX-NARROW 508
- RX-TRACE 41
- BOOK-THIN 32 in Maryland
- PHOTO-ENUM Elizabeth Brackis-Cott · 2007
Robert Litman, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
41 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Robert Litman, M.D.?
Quality data not reportedPrimary specialty
Research Study Specialist
Medicare Part D claims
41 96% vs specialty avg
Specialty distribution in Maryland
How Research Study Specialist compares to other specialties among Maryland 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 Research Study Specialist. 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).
Practice Address
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 2024.
41
Total Claims
$607
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 41
- Total Day Supply
- 1,227
- Brand Drug Cost
- $0
- Generic Drug Cost
- $607
Patient Demographics
- Average Patient Age
- 58.8 years
- Avg HCC Risk Score
- 1.32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Robert Litman, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Risperidone
Risperidone
13 claims
- Trihexyphenidyl Hcl
Trihexyphenidyl Hcl
13 claims
- Fluoxetine Hcl
Fluoxetine Hcl
12 claims
| Drug | Claims |
|---|---|
| Risperidone | 13 |
| Trihexyphenidyl Hcl | 13 |
| Fluoxetine Hcl | 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 Robert Litman, M.D. fits within the Research Study Specialist landscape nationally.
508
Research Study Specialist Providers in US
42
States with Research Study Specialist
922
Avg Claims per Provider
Robert Litman, M.D.'s 41 claims are below the specialty average of 922.
Nationwide Research Study Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Litman, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 32 Research Study Specialist providers enrolled in Maryland, 5 are shown here.
Grace Adumanisa
Largo, MD
Dr. Konstantinia Almpani
DDS, MSC
Bethesda, MD
Sam Ankrah
Beltsville, MD
Dr. James Battey
M.D.
Bethesda, MD
Dr. Rodney Berrios
MD, MPH
Bethesda, MD
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 2024, Robert Litman, M.D. wrote 41 Medicare Part D claims totaling $607 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 508 Research Study Specialist providers across 42 states in the US. The average Research Study Specialist provider writes 922 Medicare Part D claims per year.
What drugs does Robert Litman, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Robert Litman, M.D.'s most frequently prescribed drugs include Risperidone, Trihexyphenidyl Hcl, Fluoxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Litman, M.D. accept Medicare? ▼
Robert Litman, M.D. appears in CMS Medicare data with 41 Part D claims and N/A Medicare beneficiaries in 2024. 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
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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.