NPI registry status
Active
2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1952519415 MD
Verify on CMS → John Diggins, MD
Child & Adolescent Psychiatry Physician in Southbridge, 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 6,160 in Child & Adolescent Psychiatry 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
103
Medicare Part D claims · 11 beneficiaries · Child & Adolescent Psychiatry Physician avg: 600
MIPS score
97/100
▲ 14 pts above national avg 83.1 · Exceptional
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
John Diggins, MD reported a CMS MIPS final score of 97/100 - above the 83.1 national average - and filed 103 Medicare Part D claims in 2023.
- 97/100
- MIPS score · +14 vs avg
- 103
- 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.
John Diggins, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 15% higher than 85% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where John Diggins, MD sits
This provider among child & adolescent psychiatry physician peers
Across the 332 child & adolescent psychiatry physician providers who report both Medicare Part D prescribing and a MIPS quality score, John Diggins, MD writes more Part D claims than 42% of them and scores higher on MIPS quality than 81% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one child & adolescent psychiatry physician peer from a representative sample of 60; the gold marker is John Diggins, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
John Diggins, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 John Diggins, MD?
High performer (top quartile)Primary specialty
Child & Adolescent Psychiatry Physician
Medicare Part D claims
103 83% vs specialty avg
MIPS final score
97/100 13.9 pts vs avg
Specialty distribution in Massachusetts
How Child & Adolescent Psychiatry Physician compares to other specialties among Massachusetts providers
Medicare quality performance, MIPS
John Diggins, MD's 2023 MIPS final score plotted against the Child & Adolescent Psychiatry Physician national average
- MIPS Final Score
- 97/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Child & Adolescent Psychiatry Physician) - 97/100 vs national avg 83.1
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).
John Diggins, MD appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding MD credentials at 29 PINE ST, Southbridge, MA, 01550, with a listed phone of (508) 765-9167. NPI 1952519415 was issued on 05/18/2007.
Medicare Part D records for calendar year 2023 show 103 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $3K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97/100 for the 2023 performance year (Quality 78.1), compared with the national average of 83.1.
Child & Adolescent Psychiatry Physician is a mid-sized specialty nationwide, with 6,160 enrolled providers across 54 states and an average of 600 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 | 1952519415 |
|---|---|
| Specialty | Child & Adolescent Psychiatry Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/18/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.0218
Final Score
Avg: 83.1
78.0983
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where John Diggins, 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.
Umass Memorial Medical Group Inc
Worcester, 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 John Diggins, MD. To verify John Diggins, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
103
Total Claims
$3K
Total Drug Cost
11
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 163
- Total Day Supply
- 4,724
- Brand Drug Cost
- $0
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 35.8 years
- Avg HCC Risk Score
- 0.79
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Diggins, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Aripiprazole
Aripiprazole
20 claims
- Sertraline Hcl
Sertraline Hcl
14 claims
- Gabapentin
Gabapentin
12 claims
| Drug | Claims |
|---|---|
| Aripiprazole | 20 |
| Sertraline Hcl | 14 |
| Gabapentin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Child & Adolescent Psychiatry Physician in MA →
All providers in Massachusetts →
Compare specialties →
Child & Adolescent Psychiatry Physician Overview
How John Diggins, MD fits within the Child & Adolescent Psychiatry Physician landscape nationally.
6,160
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
600
Avg Claims per Provider
John Diggins, MD's 103 claims are below the specialty average of 600.
Nearby Child & Adolescent Psychiatry Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Diggins.
Dr. Patricia Abbott
MD
Westwood, MA
Dr. Annah Abrams
MD
Boston, MA
Dr. Ashley Adams
MD
Boston, MA
Dr. David Adams
MD
Boston, MA
Dr. Peter Adams
M.D.
Newton, MA
Compare Child & Adolescent Psychiatry 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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Child & Adolescent Psychiatry 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 John Diggins, MD's specialty? ▼
John Diggins, MD specializes in Child & Adolescent Psychiatry Physician and practices in Southbridge, Massachusetts. Credentials: MD.
How much does John Diggins, MD prescribe under Medicare Part D? ▼
In 2023, John Diggins, MD wrote 103 Medicare Part D claims totaling $3K in drug costs for 11 beneficiaries.
What is John Diggins, MD's Medicare quality score? ▼
John Diggins, MD has a CMS MIPS Final Score of 97/100 (Quality: 78.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Diggins, MD located? ▼
John Diggins, MD is located at 29 PINE ST, Southbridge, MA, 01550. Phone: (508) 765-9167.
What is John Diggins, MD's NPI number? ▼
John Diggins, MD's National Provider Identifier (NPI) is 1952519415, issued on 05/18/2007.
How many Child & Adolescent Psychiatry Physician providers are there in the US? ▼
There are 6,160 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 600 Medicare Part D claims per year.
What drugs does John Diggins, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Diggins, MD's most frequently prescribed drugs include Aripiprazole, Sertraline Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Diggins, MD accept Medicare? ▼
John Diggins, MD appears in CMS Medicare data with 103 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Diggins, MD's credentials? ▼
John Diggins, MD's NPI is 1952519415 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.