NPI registry status
Active
2026 NPPES data Addiction Medicine (Preventive Medicine) Physician NPI 1730184854 M.D., M.P.H.
Verify on CMS → Christopher Shanahan, M.D., M.P.H.
Addiction Medicine (Preventive Medicine) Physician in Mattapan, 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 325 in Addiction Medicine (Preventive 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 · 72 beneficiaries · Addiction Medicine (Preventive Medicine) Physician avg: 959
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Christopher Shanahan, M.D., M.P.H. filed 1,159 Medicare Part D claims in 2023 as a Addiction Medicine (Preventive Medicine) Physician in Mattapan, Massachusetts.
- 1K
- Part D claims, 2023
- 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 Shanahan, M.D., M.P.H.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,159 Top 23% higher than 77% 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 Shanahan, M.D., M.P.H. 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 Christopher Shanahan, M.D., M.P.H.?
Quality data not reportedPrimary specialty
Addiction Medicine (Preventive Medicine) Physician
Medicare Part D claims
1,159 21% vs specialty avg
Specialty distribution in Massachusetts
How Addiction Medicine (Preventive 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 Addiction Medicine (Preventive 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).
Christopher Shanahan, M.D., M.P.H. appears in the CMS NPPES registry as a Addiction Medicine (Preventive Medicine) Physician provider holding M.D., M.P.H. credentials at 1575 BLUE HILL AVE, Mattapan, MA, 02126, with a listed phone of (617) 829-6006. NPI 1730184854 was issued on 06/15/2005.
Medicare Part D records for calendar year 2023 show 1,159 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $131K in drug spend, with an opioid prescribing rate of 5.6%.
Addiction Medicine (Preventive Medicine) Physician is a narrow specialty nationwide, with 325 enrolled providers across 44 states and an average of 959 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 | 1730184854 |
|---|---|
| Specialty | Addiction Medicine (Preventive Medicine) Physician |
| Credentials | M.D., M.P.H. |
| Gender | Male |
| NPI Issued | 06/15/2005 |
Hospital and facility affiliations
Facilities where Christopher Shanahan, M.D., M.P.H. 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.
Mattapan Community Health Center, Inc.
Boston, MA
Savida Health PC
West Springfield, 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).
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 Christopher Shanahan, M.D., M.P.H.. To verify Christopher Shanahan, M.D., M.P.H.'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,159
Total Claims
$131K
Total Drug Cost
72
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,231
- Total Day Supply
- 64,394
- Generic Drug Cost
- $32K
- Opioid Claims
- 65 (5.6% rate)
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 68.9 years
- Avg HCC Risk Score
- 1.66
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 22, 65-74: 28, 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 Christopher Shanahan, M.D., M.P.H. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
61 claims
- Amlodipine Besylate
Amlodipine Besylate
40 claims
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
37 claims
- Metformin Hcl
Metformin Hcl
37 claims
- Omeprazole
Omeprazole
35 claims
- Ibuprofen
Ibuprofen
34 claims
- Losartan Potassium
Losartan Potassium
34 claims
- Trulicity
Trulicity
34 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 61 |
| Amlodipine Besylate | 40 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 37 |
| Metformin Hcl | 37 |
| Omeprazole | 35 |
| Ibuprofen | 34 |
| Losartan Potassium | 34 |
| Trulicity Dulaglutide | 34 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 29 |
| Clonazepam | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Preventive Medicine) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Addiction Medicine (Preventive Medicine) Physician Overview
How Christopher Shanahan, M.D., M.P.H. fits within the Addiction Medicine (Preventive Medicine) Physician landscape nationally.
325
Addiction Medicine (Preventive Medicine) Physician Providers in US
44
States with Addiction Medicine (Preventive Medicine) Physician
959
Avg Claims per Provider
Christopher Shanahan, M.D., M.P.H.'s 1,159 claims are above the specialty average of 959.
Nearby Addiction Medicine (Preventive Medicine) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Shanahan.
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 Addiction Medicine (Preventive 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
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Virtual care options and coverage in 2026
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Frequently Asked Questions
What is Christopher Shanahan, M.D., M.P.H.'s specialty? ▼
Christopher Shanahan, M.D., M.P.H. specializes in Addiction Medicine (Preventive Medicine) Physician and practices in Mattapan, Massachusetts. Credentials: M.D., M.P.H..
How much does Christopher Shanahan, M.D., M.P.H. prescribe under Medicare Part D? ▼
In 2023, Christopher Shanahan, M.D., M.P.H. wrote 1,159 Medicare Part D claims totaling $131K in drug costs for 72 beneficiaries.
Where is Christopher Shanahan, M.D., M.P.H. located? ▼
Christopher Shanahan, M.D., M.P.H. is located at 1575 BLUE HILL AVE, Mattapan, MA, 02126. Phone: (617) 829-6006.
What is Christopher Shanahan, M.D., M.P.H.'s NPI number? ▼
Christopher Shanahan, M.D., M.P.H.'s National Provider Identifier (NPI) is 1730184854, issued on 06/15/2005.
Does Christopher Shanahan, M.D., M.P.H. prescribe opioids? ▼
Yes, Christopher Shanahan, M.D., M.P.H. had 65 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Addiction Medicine (Preventive Medicine) Physician providers are there in the US? ▼
There are 325 Addiction Medicine (Preventive Medicine) Physician providers across 44 states in the US. The average Addiction Medicine (Preventive Medicine) Physician provider writes 959 Medicare Part D claims per year.
What drugs does Christopher Shanahan, M.D., M.P.H. prescribe most often? ▼
Based on 2023 Medicare Part D data, Christopher Shanahan, M.D., M.P.H.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Shanahan, M.D., M.P.H. accept Medicare? ▼
Christopher Shanahan, M.D., M.P.H. appears in CMS Medicare data with 1,159 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Shanahan, M.D., M.P.H.'s credentials? ▼
Christopher Shanahan, M.D., M.P.H.'s NPI is 1730184854 with credentials M.D., M.P.H.. 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.