NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1760573182 M.D.
Verify on CMS → Raja Rehman, M.D.
Gastroenterology Physician in Salem, New Hampshire.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,601 in Gastroenterology 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
932
Medicare Part D claims · 240 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$572.84
25 payments · CMS Open Payments (Sunshine Act)
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
Raja Rehman, M.D. filed 932 Medicare Part D claims in 2023 as a Gastroenterology Physician in Salem, New Hampshire, prescribing 81% generic.
- 932
- Part D claims, 2023
- 81%
- 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.
Raja Rehman, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
932 Top 25% higher than 75% 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)
Raja Rehman, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Raja Rehman, M.D.?
Quality data not reportedPrimary specialty
Gastroenterology Physician
Medicare Part D claims
932 12% vs specialty avg
Specialty distribution in New Hampshire
How Gastroenterology Physician compares to other specialties among New Hampshire 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 Gastroenterology 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).
Raja Rehman, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at NORTHEAST GASTROENTEROLOGY ASSOC., PC, Salem, NH, 03079, with a listed phone of (603) 898-5082. NPI 1760573182 was issued on 09/28/2006.
Medicare Part D records for calendar year 2023 show 932 prescription claims written by this provider, covering 240 Medicare beneficiaries and totaling roughly $454K in drug spend, split 19% brand-name and 81% generic by claim count.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,601 enrolled providers across 54 states and an average of 833 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 | 1760573182 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/28/2006 |
Hospital and facility affiliations
Facilities where Raja Rehman, 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.
Mass General Brigham Community Physicians Inc
Lawrence, MA
Mass General Brigham Medical Group Northern Massachusetts Inc
Danvers, MA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Raja Rehman, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$573
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
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.
Brand vs generic prescribing mix · Typical
Raja Rehman, M.D. - brand share 19.0%
Gastroenterology Physician average
19% brand-name claims vs 81% generic, on 932 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.
932
Total Claims
$454K
Total Drug Cost
240
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,497
- Total Day Supply
- 43,259
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $424K
- Generic Drug Cost
- $30K
- Antibiotic Claims
- 38
Patient Demographics
- Average Patient Age
- 67.2 years
- Avg HCC Risk Score
- 1.28
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 71, 65-74: 111, 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 Raja Rehman, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Omeprazole
Omeprazole
374 claims
- Dicyclomine Hcl 85
Dicyclomine Hcl
85 claims
- Linzess 84
Linzess
84 claims
- Famotidine 69
Famotidine
69 claims
- Pantoprazole Sodium 54
Pantoprazole Sodium
54 claims
- Creon 22
Creon
22 claims
- Amitriptyline Hcl 16
Amitriptyline Hcl
16 claims
- Furosemide 14
Furosemide
14 claims
| Drug | Claims |
|---|---|
| Omeprazole | 374 |
| Dicyclomine Hcl | 85 |
| Linzess Linaclotide | 84 |
| Famotidine | 69 |
| Pantoprazole Sodium | 54 |
| Creon Lipase/Protease/Amylase | 22 |
| Amitriptyline Hcl | 16 |
| Furosemide | 14 |
| Ondansetron Hcl | 13 |
| Prednisone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Raja Rehman, M.D. fits within the Gastroenterology Physician landscape nationally.
16,601
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Raja Rehman, M.D.'s 932 claims are above the specialty average of 833.
Nearby Gastroenterology Physician Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Rehman.
Dr. Alain Ades
M.D.
Stratham, NH
Dr. Jeffrey Adler
M.D.
Lebanon, NH
Dr. Vincent Aguirre
M.D., PH.D.
Manchester, NH
Dr. Peter Anderson
M.D.
Lebanon, NH
Dr. John Baier
MD
Concord, NH
Compare Gastroenterology 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 New Hampshire medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gastroenterology 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 Raja Rehman, M.D.'s specialty? ▼
Raja Rehman, M.D. specializes in Gastroenterology Physician and practices in Salem, New Hampshire. Credentials: M.D..
How much does Raja Rehman, M.D. prescribe under Medicare Part D? ▼
In 2023, Raja Rehman, M.D. wrote 932 Medicare Part D claims totaling $454K in drug costs for 240 beneficiaries.
Where is Raja Rehman, M.D. located? ▼
Raja Rehman, M.D. is located at NORTHEAST GASTROENTEROLOGY ASSOC., PC, Salem, NH, 03079. Phone: (603) 898-5082.
What is Raja Rehman, M.D.'s NPI number? ▼
Raja Rehman, M.D.'s National Provider Identifier (NPI) is 1760573182, issued on 09/28/2006.
Does Raja Rehman, M.D. prescribe more brand-name or generic drugs? ▼
Raja Rehman, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $424K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,601 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Raja Rehman, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Raja Rehman, M.D.'s most frequently prescribed drugs include Omeprazole, Dicyclomine Hcl, Linzess. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Raja Rehman, M.D. accept Medicare? ▼
Raja Rehman, M.D. appears in CMS Medicare data with 932 Part D claims and 240 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Raja Rehman, M.D.'s credentials? ▼
Raja Rehman, M.D.'s NPI is 1760573182 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.