NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1750811949 MBBS
Verify on CMS → Christon Grant, MBBS
Rheumatology Physician in Bristol, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology 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 · 136 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
30.4/100
▼ 53 pts below national avg 83.5 · Below average
Industry payments
$1.6K
73 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Christon Grant, MBBS reported a CMS MIPS final score of 30.4/100 - below the 83.5 national average - and filed 1,132 Medicare Part D claims in 2024.
- 30.4/100
- MIPS score · -53 vs avg
- 1K
- Part D claims, 2024
- 83%
- 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.
Federal trust snapshot
What official records show about Christon Grant, MBBS
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1750811949), first enumerated 06/19/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,132 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 30.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.6K in reported industry payments (73 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1750811949 · Rheumatology Physician
NPI-10 · ENUM-RECENT · TAX-MID · MIPS-LOW · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1750811949
- ENUM-RECENT 2017
- TAX-MID 6K Rheumatology Physician
- MIPS-LOW 30.4/100
- RX-MID 1,132
- BOOK-THIN 125 in Connecticut
- PHOTO-FINISH Anju Charalel, M.D. · ±0.4
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Anju Charalel, M…
Anju Charalel, M.D.
30 MIPS pts
- David Fraser, MD…
David Fraser, MD
30 MIPS pts
- James Jakes, MD …
James Jakes, MD
30 MIPS pts
- Grant · this pro…
Grant · this provider
30.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christon Grant, MBBS's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
30 ≥ 3rd percentile 3% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Christon Grant, MBBS sits
This provider among rheumatology physician peers
Across the 1,970 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christon Grant, MBBS writes more Part D claims than 31% of them and scores higher on MIPS quality than 5% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Christon Grant, MBBS. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christon Grant, MBBS 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 Christon Grant, MBBS?
Below national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
1,132 45% vs specialty avg
MIPS final score
30.4/100 53.1 pts vs avg
Specialty distribution in Connecticut
How Rheumatology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Christon Grant, MBBS's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 30.4/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1750811949 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MBBS |
| Gender | Male |
| NPI Issued | 06/19/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
30.411
Final Score
Measured-score avg: 83.5
12.4559
Quality
47.2475
Cost
0
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Christon Grant, MBBS 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.
Bristol Hospital Incorporated
Bristol, CT
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 Christon Grant, MBBS. Source: openpaymentsdata.cms.gov.
Total received
$1.6K
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
Christon Grant, MBBS - brand share 17.0%
Rheumatology Physician average
17% brand-name claims vs 83% generic, on 1,132 2024 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 2024.
1,132
Total Claims
$923K
Total Drug Cost
136
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,658.9
- Total Day Supply
- 47,483
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $911K
- Generic Drug Cost
- $11K
- Opioid Claims
- 15 (1.3% rate)
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.65
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 21, 65-74: 63, 75-84: 39, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christon Grant, MBBS prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prednisone
Prednisone
334 claims
- Allopurinol 129
Allopurinol
129 claims
- Methotrexate 99
Methotrexate
99 claims
- Alendronate Sodium 97
Alendronate Sodium
97 claims
- Hydroxychloroquine… 59
Hydroxychloroquine Sulfate
59 claims
- Colchicine 56
Colchicine
56 claims
- Enbrel Sureclick 41
Enbrel Sureclick
41 claims
- Gabapentin 37
Gabapentin
37 claims
| Drug | Claims |
|---|---|
| Prednisone | 334 |
| Allopurinol | 129 |
| Methotrexate Methotrexate Sodium | 99 |
| Alendronate Sodium | 97 |
| Hydroxychloroquine Sulfate | 59 |
| Colchicine | 56 |
| Enbrel Sureclick Etanercept | 41 |
| Gabapentin | 37 |
| Sulfasalazine Dr Sulfasalazine | 37 |
| Humira(Cf) Pen Adalimumab | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Christon Grant, MBBS fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Christon Grant, MBBS's 1,132 claims are below the specialty average of 2,058.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Grant, both outside Connecticut so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (30.4 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Grant.
One of 125 Rheumatology Physician providers enrolled in Connecticut, 5 are shown here.
Dr. Crispin Abarientos
M.D.
Middletown, CT
Dr. Aryeh Abeles
M.D.
Meriden, CT
Dr. Micha Abeles
M.D.
Meriden, CT
Jackilyn Annelli
PA
Norwich, CT
Dr. Sandra Apenteng
MD
Glastonbury, CT
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christon Grant, MBBS's specialty? ▼
Christon Grant, MBBS specializes in Rheumatology Physician and practices in Bristol, Connecticut. Credentials: MBBS.
How much does Christon Grant, MBBS prescribe under Medicare Part D? ▼
In 2024, Christon Grant, MBBS wrote 1,132 Medicare Part D claims totaling $923K in drug costs for 136 beneficiaries.
What is Christon Grant, MBBS's Medicare quality score? ▼
Christon Grant, MBBS has a CMS MIPS Final Score of 30.4/100 (Quality: 12.5, Cost: 47.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Christon Grant, MBBS located? ▼
Christon Grant, MBBS is located at 41 BREWSTER RD, Bristol, CT, 06010. Phone: (860) 585-1283.
What is Christon Grant, MBBS's NPI number? ▼
Christon Grant, MBBS's National Provider Identifier (NPI) is 1750811949, issued on 06/19/2017.
Does Christon Grant, MBBS prescribe more brand-name or generic drugs? ▼
Christon Grant, MBBS's prescribing is 17% brand-name and 83% generic drugs by claim count, with $911K in brand drug costs.
Does Christon Grant, MBBS prescribe opioids? ▼
Yes, Christon Grant, MBBS had 15 opioid claims in 2024 with an opioid prescribing rate of 1.3%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Christon Grant, MBBS prescribe most often? ▼
Based on 2024 Medicare Part D data, Christon Grant, MBBS's most frequently prescribed drugs include Prednisone, Allopurinol, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christon Grant, MBBS accept Medicare? ▼
Christon Grant, MBBS appears in CMS Medicare data with 1,132 Part D claims and 136 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christon Grant, MBBS's credentials? ▼
Christon Grant, MBBS's NPI is 1750811949 with credentials MBBS. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.