NPI registry status
Active
2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1194796219 M.D.
Verify on CMS → Christopher Berman, M.D.
Physical Medicine & Rehabilitation Physician in Frederick, 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 15,336 in Physical Medicine & Rehabilitation Physician, 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
2K
Medicare Part D claims · 199 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Christopher Berman, M.D. filed 1,599 Medicare Part D claims in 2023 as a Physical Medicine & Rehabilitation Physician in Frederick, Maryland, prescribing 98% generic.
- 2K
- Part D claims, 2023
- 98%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Christopher Berman, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,599 Top 19% higher than 81% 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
✓
Board certification likely (heuristic, not verified)
Christopher Berman, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Christopher Berman, M.D.?
Quality data not reportedPrimary specialty
Physical Medicine & Rehabilitation Physician
Medicare Part D claims
1,599 105% vs specialty avg
Specialty distribution in Maryland
How Physical Medicine & Rehabilitation Physician 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 Physical Medicine & Rehabilitation Physician. 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).
Christopher Berman, M.D. appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding M.D. credentials at 86 THOMAS JOHNSON CT, Frederick, MD, 21702, with a listed phone of (301) 694-8311. NPI 1194796219 was issued on 01/27/2006.
Medicare Part D records for calendar year 2023 show 1,599 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $61K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 60.7%.
Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,336 enrolled providers across 54 states and an average of 781 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 | 1194796219 |
|---|---|
| Specialty | Physical Medicine & Rehabilitation Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/27/2006 |
Hospital and facility affiliations
Facilities where Christopher Berman, 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.
According to CMS billing records, Christopher Berman, M.D. is affiliated with 3 Medicare-billing facilities.
Amber Hill Physical Therapy Inc
Frederick, MD
Centers For Advanced Orthopaedics LLC
Frederick, MD
Meritus Medical Center Inc
Hagerstown, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Christopher Berman, M.D. - brand share 2.0%
Physical Medicine & Rehabilitation Physician average
2% brand-name claims vs 98% generic, on 1,599 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,599
Total Claims
$61K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,829
- Total Day Supply
- 49,471
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $23K
- Generic Drug Cost
- $37K
- Opioid Claims
- 971 (60.7% rate)
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 36, 65-74: 89, 75-84: 62, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christopher Berman, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
244 claims
- Tramadol Hcl
Tramadol Hcl
242 claims
- Gabapentin
Gabapentin
219 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
213 claims
- Oxycodone Hcl
Oxycodone Hcl
148 claims
- Duloxetine Hcl 90
Duloxetine Hcl
90 claims
- Pregabalin 48
Pregabalin
48 claims
- Tizanidine Hcl 46
Tizanidine Hcl
46 claims
| Drug | Claims |
|---|---|
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 244 |
| Tramadol Hcl | 242 |
| Gabapentin | 219 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 213 |
| Oxycodone Hcl | 148 |
| Duloxetine Hcl | 90 |
| Pregabalin | 48 |
| Tizanidine Hcl | 46 |
| Morphine Sulfate Er Morphine Sulfate | 40 |
| Naloxone Hcl | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Physical Medicine & Rehabilitation Physician in MD →
All providers in Maryland →
Compare specialties →
Physical Medicine & Rehabilitation Physician Overview
How Christopher Berman, M.D. fits within the Physical Medicine & Rehabilitation Physician landscape nationally.
15,336
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider
Christopher Berman, M.D.'s 1,599 claims are above the specialty average of 781.
Nearby Physical Medicine & Rehabilitation Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Berman.
Dr. Mark Acierno
PT, DPT, OCS
Frederick, MD
Akpene Agbegninou
Burtonsville, MD
Dr. Rommaan Ahmad
DO
Clinton, MD
Dr. Bryan Akpuaka
DO
Rockville, MD
Dr. Idris Amin
M.D.
Baltimore, MD
Compare Physical Medicine & Rehabilitation Physician 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physical Medicine & Rehabilitation Physician 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.
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Frequently Asked Questions
What is Christopher Berman, M.D.'s specialty? ▼
Christopher Berman, M.D. specializes in Physical Medicine & Rehabilitation Physician and practices in Frederick, Maryland. Credentials: M.D..
How much does Christopher Berman, M.D. prescribe under Medicare Part D? ▼
In 2023, Christopher Berman, M.D. wrote 1,599 Medicare Part D claims totaling $61K in drug costs for 199 beneficiaries.
Where is Christopher Berman, M.D. located? ▼
Christopher Berman, M.D. is located at 86 THOMAS JOHNSON CT, Frederick, MD, 21702. Phone: (301) 694-8311.
What is Christopher Berman, M.D.'s NPI number? ▼
Christopher Berman, M.D.'s National Provider Identifier (NPI) is 1194796219, issued on 01/27/2006.
Does Christopher Berman, M.D. prescribe more brand-name or generic drugs? ▼
Christopher Berman, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $23K in brand drug costs.
Does Christopher Berman, M.D. prescribe opioids? ▼
Yes, Christopher Berman, M.D. had 971 opioid claims in 2023 with an opioid prescribing rate of 60.7%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,336 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does Christopher Berman, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Christopher Berman, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Tramadol Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Berman, M.D. accept Medicare? ▼
Christopher Berman, M.D. appears in CMS Medicare data with 1,599 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Berman, M.D.'s credentials? ▼
Christopher Berman, M.D.'s NPI is 1194796219 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.
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 May 2026.