2026 NPPES data Internal Medicine Physician NPI 1720168347 MD
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NEIL BOSIDE, MD

Internal Medicine Physician in RIVERSIDE, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
4K
Medicare Part D claims · 369 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.0781/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

NEIL BOSIDE, MD reported a CMS MIPS final score of 79.0781/100 — below the 83.1 national average — and filed 3,522 Medicare Part D claims in 2023.

79.0781/100
MIPS score · -4 vs avg
4K
Part D claims, 2023
91%
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.

NEIL BOSIDE, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

NEIL BOSIDE, 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 NEIL BOSIDE, MD?

Near national average

NPI registry status

Active

Issued 10/17/2006

NPI 1720168347

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

3,522 30% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

79.0781/100 4.021899999999988% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Internal Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers

Internal Medicine Physician share within Connecticut

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Connecticut

Medicare quality performance — MIPS

NEIL BOSIDE, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Near national average
MIPS Final Score
79.0781/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 79.0781/100 vs national avg 83.1

0%100%National avg83%79.1%
MIPS final score (Internal Medicine Physician) — 79.0781/100 vs national avg 83.1

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).

NEIL BOSIDE, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1200 EAST PUTNAM AVE, RIVERSIDE, CT, 06878, with a listed phone of (203) 637-0057. NPI 1720168347 was issued on 10/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOSIDE most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,522 prescription claims written by this provider, covering 369 Medicare beneficiaries and totaling roughly $240K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.0781/100 for the 2023 performance year (Quality 73.195, Cost 57.8987), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

1200 EAST PUTNAM AVE
RIVERSIDE, CT 06878

Provider Details

NPI 1720168347
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 10/17/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.0781
Final Score
Avg: 83.1
73.195
Quality
57.8987
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where NEIL BOSIDE, 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.

STAMFORD HEALTH MEDICAL GROUP INC
STAMFORD, 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).

Brand vs generic prescribing mix · Generic-heavy

NEIL BOSIDE, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 3,522 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.

3,522
Total Claims
$240K
Total Drug Cost
369
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,895
Total Day Supply
226,757
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$160K
Generic Drug Cost
$80K
Opioid Claims
56 (1.6% rate)
Antibiotic Claims
197

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.98
Gender Split
52% female / 48% male
Age Distribution
<65: 15, 65-74: 158, 75-84: 145, 85+: 51

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What NEIL BOSIDE, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
311
Levothyroxine Sodium
197
Lisinopril
154
Alprazolam
117
Losartan Potassium
107
Metformin Hcl
107
Amlodipine Besylate
97
Simvastatin
97
Sertraline Hcl
89
Hydrochlorothiazide
86

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How NEIL BOSIDE, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

NEIL BOSIDE, MD's 3,522 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as BOSIDE.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NEIL BOSIDE, MD's specialty?
NEIL BOSIDE, MD specializes in Internal Medicine Physician and practices in RIVERSIDE, Connecticut. Credentials: MD.
How much does NEIL BOSIDE, MD prescribe under Medicare Part D?
In 2023, NEIL BOSIDE, MD wrote 3,522 Medicare Part D claims totaling $240K in drug costs for 369 beneficiaries.
What is NEIL BOSIDE, MD's Medicare quality score?
NEIL BOSIDE, MD has a CMS MIPS Final Score of 79.0781/100 (Quality: 73.195, Cost: 57.8987). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is NEIL BOSIDE, MD located?
NEIL BOSIDE, MD is located at 1200 EAST PUTNAM AVE, RIVERSIDE, CT, 06878. Phone: (203) 637-0057.
What is NEIL BOSIDE, MD's NPI number?
NEIL BOSIDE, MD's National Provider Identifier (NPI) is 1720168347, issued on 10/17/2006.
Does NEIL BOSIDE, MD prescribe more brand-name or generic drugs?
NEIL BOSIDE, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $160K in brand drug costs.
Does NEIL BOSIDE, MD prescribe opioids?
Yes, NEIL BOSIDE, MD had 56 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does NEIL BOSIDE, MD prescribe most often?
Based on 2023 Medicare Part D data, NEIL BOSIDE, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NEIL BOSIDE, MD accept Medicare?
NEIL BOSIDE, MD appears in CMS Medicare data with 3,522 Part D claims and 369 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NEIL BOSIDE, MD's credentials?
NEIL BOSIDE, MD's NPI is 1720168347 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

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