NPI registry status
Active
2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1215464540 MD
Verify on CMS → Ryan Eid, MD
Allergy & Immunology (Internal Medicine) Physician in Duxbury, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 517 in Allergy & Immunology (Internal Medicine) 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
1K
Medicare Part D claims · 213 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
0%
generic claims · 56% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.8K
139 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
Ryan Eid, MD filed 1,043 Medicare Part D claims in 2023 as a Allergy & Immunology (Internal Medicine) Physician in Duxbury, Massachusetts, prescribing 0% generic.
- 1K
- Part D claims, 2023
- 0%
- 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.
Ryan Eid, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,043 Top 24% higher than 76% 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)
Ryan Eid, MD 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 Ryan Eid, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology (Internal Medicine) Physician
Medicare Part D claims
1,043 31% vs specialty avg
Specialty distribution in Massachusetts
How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Massachusetts 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 Allergy & Immunology (Internal Medicine) 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).
Ryan Eid, MD appears in the CMS NPPES registry as an Allergy & Immunology (Internal Medicine) Physician provider holding MD credentials at 40 TREMONT ST STE 52, Duxbury, MA, 02332, with a listed phone of (781) 934-6200. NPI 1215464540 was issued on 05/17/2017.
Medicare Part D records for calendar year 2023 show 1,043 prescription claims written by this provider, covering 213 Medicare beneficiaries and totaling roughly $564K in drug spend, split 56% brand-name and 0% generic by claim count.
Allergy & Immunology (Internal Medicine) Physician is a narrow specialty nationwide, with 517 enrolled providers across 47 states and an average of 798 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 | 1215464540 |
|---|---|
| Specialty | Allergy & Immunology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/17/2017 |
Hospital and facility affiliations
Facilities where Ryan Eid, MD 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.
Harbor Medical Associates Inc
South Weymouth, MA
Mass General Brigham Medical Group Suburban Massachusetts Inc
Newton, 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 Ryan Eid, MD. Source: openpaymentsdata.cms.gov.
Total received
$2.8K
Largest payer
AstraZeneca Pharmaceuticals LP
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.
License & disciplinary context - Massachusetts BORIM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Ryan Eid, MD. To verify Ryan Eid, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Ryan Eid, MD - brand share 56.0%
Allergy & Immunology (Internal Medicine) Physician average
56% brand-name claims vs 0% generic, on 1,043 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.
1,043
Total Claims
$564K
Total Drug Cost
213
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,872
- Total Day Supply
- 53,733
- Brand vs Generic
- 56% brand / 0% generic
- Brand Drug Cost
- $541K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.97
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 11, 65-74: 104, 75-84: 81, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ryan Eid, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
118 claims
- Fluticasone Propio…
Fluticasone Propionate
87 claims
- Montelukast Sodium
Montelukast Sodium
73 claims
- Symbicort
Symbicort
71 claims
- Azelastine Hcl
Azelastine Hcl
65 claims
- Trelegy Ellipta
Trelegy Ellipta
63 claims
- Flovent Hfa 41
Flovent Hfa
41 claims
- Prednisone 40
Prednisone
40 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 118 |
| Fluticasone Propionate | 87 |
| Montelukast Sodium | 73 |
| Symbicort Budesonide/Formoterol Fumarate | 71 |
| Azelastine Hcl | 65 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 63 |
| Flovent Hfa Fluticasone Propionate | 41 |
| Prednisone | 40 |
| Breo Ellipta Fluticasone/Vilanterol | 38 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 38 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Allergy & Immunology (Internal Medicine) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Allergy & Immunology (Internal Medicine) Physician Overview
How Ryan Eid, MD fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.
517
Allergy & Immunology (Internal Medicine) Physician Providers in US
47
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider
Ryan Eid, MD's 1,043 claims are above the specialty average of 798.
Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Eid.
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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology (Internal Medicine) 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
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Explore Massachusetts
Frequently Asked Questions
What is Ryan Eid, MD's specialty? ▼
Ryan Eid, MD specializes in Allergy & Immunology (Internal Medicine) Physician and practices in Duxbury, Massachusetts. Credentials: MD.
How much does Ryan Eid, MD prescribe under Medicare Part D? ▼
In 2023, Ryan Eid, MD wrote 1,043 Medicare Part D claims totaling $564K in drug costs for 213 beneficiaries.
Where is Ryan Eid, MD located? ▼
Ryan Eid, MD is located at 40 TREMONT ST STE 52, Duxbury, MA, 02332. Phone: (781) 934-6200.
What is Ryan Eid, MD's NPI number? ▼
Ryan Eid, MD's National Provider Identifier (NPI) is 1215464540, issued on 05/17/2017.
Does Ryan Eid, MD prescribe more brand-name or generic drugs? ▼
Ryan Eid, MD's prescribing is 56% brand-name and 0% generic drugs by claim count, with $541K in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US? ▼
There are 517 Allergy & Immunology (Internal Medicine) Physician providers across 47 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does Ryan Eid, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Ryan Eid, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Fluticasone Propionate, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ryan Eid, MD accept Medicare? ▼
Ryan Eid, MD appears in CMS Medicare data with 1,043 Part D claims and 213 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ryan Eid, MD's credentials? ▼
Ryan Eid, MD's NPI is 1215464540 with credentials MD. 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.