NPI registry status
Active
2026 NPPES data Specialist NPI 1114901063 M.D.
Verify on CMS → Robert Berg, M.D.
Specialist in Meridian, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 69,658 in 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
545
Medicare Part D claims · 119 beneficiaries · Specialist avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Robert Berg, M.D. filed 545 Medicare Part D claims in 2023 as a Specialist in Meridian, Mississippi.
- 545
- 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.
Robert Berg, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
545 Top 34% higher than 66% 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
What does the federal data show about Robert Berg, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
545 63% vs specialty avg
Specialty distribution in Mississippi
How Specialist compares to other specialties among Mississippi 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 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).
Robert Berg, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 2024 15TH ST, Meridian, MS, 39301, with a listed phone of (601) 482-5174. NPI 1114901063 was issued on 12/05/2005.
Medicare Part D records for calendar year 2023 show 545 prescription claims written by this provider, covering 119 Medicare beneficiaries and totaling roughly $71K in drug spend.
Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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 | 1114901063 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 12/05/2005 |
Hospital and facility affiliations
Facilities where Robert Berg, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Rush Medical Foundation
Meridian, MS
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
545
Total Claims
$71K
Total Drug Cost
119
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,006
- Total Day Supply
- 28,459
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 67.6 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 32, 65-74: 56, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Berg, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
27 claims
- Atorvastatin Calcium
Atorvastatin Calcium
26 claims
- Losartan Potassium
Losartan Potassium
23 claims
- Eliquis
Eliquis
18 claims
- Clopidogrel
Clopidogrel
17 claims
- Famotidine
Famotidine
16 claims
- Levothyroxine Sodium
Levothyroxine Sodium
16 claims
- Ozempic
Ozempic
15 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 27 |
| Atorvastatin Calcium | 26 |
| Losartan Potassium | 23 |
| Eliquis Apixaban | 18 |
| Clopidogrel Clopidogrel Bisulfate | 17 |
| Famotidine | 16 |
| Levothyroxine Sodium | 16 |
| Ozempic Semaglutide | 15 |
| Lisinopril | 13 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Robert Berg, M.D. fits within the Specialist landscape nationally.
69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Robert Berg, M.D.'s 545 claims are below the specialty average of 1,474.
Nearby Specialist Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Berg.
Dr. John Abide
MD
Greenville, MS
Kelley Aday
Iuka, MS
Dr. Moses Adedeji
MD
Biloxi, MS
Dr. John Agnone
MD
Gulfport, MS
Dr. N Aveed Ahmed
M.D.
Jackson, MS
Compare Specialist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Mississippi medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Specialist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Mississippi
Frequently Asked Questions
What is Robert Berg, M.D.'s specialty? ▼
Robert Berg, M.D. specializes in Specialist and practices in Meridian, Mississippi. Credentials: M.D..
How much does Robert Berg, M.D. prescribe under Medicare Part D? ▼
In 2023, Robert Berg, M.D. wrote 545 Medicare Part D claims totaling $71K in drug costs for 119 beneficiaries.
Where is Robert Berg, M.D. located? ▼
Robert Berg, M.D. is located at 2024 15TH ST, Meridian, MS, 39301. Phone: (601) 482-5174.
What is Robert Berg, M.D.'s NPI number? ▼
Robert Berg, M.D.'s National Provider Identifier (NPI) is 1114901063, issued on 12/05/2005.
How many Specialist providers are there in the US? ▼
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Robert Berg, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Berg, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Berg, M.D. accept Medicare? ▼
Robert Berg, M.D. appears in CMS Medicare data with 545 Part D claims and 119 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Berg, M.D.'s credentials? ▼
Robert Berg, M.D.'s NPI is 1114901063 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 (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
Compiled from official public sources by the PlainDoctor editorial team.