2026 NPPES data Hospitalist Physician NPI 1891011250 D.O.
Verify on CMS →

JACLYN COX, D.O.

Hospitalist Physician in FARMINGTON, 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
20
Medicare Part D claims · 11 beneficiaries · Hospitalist Physician avg: 888
MIPS score
79.3496/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: JACLYN COX, D.O. is a Hospitalist Physician ([object Object]) practicing in FARMINGTON, Connecticut with a Medicare Part D prescribing footprint of 20 claims across 11 beneficiaries . Their CMS MIPS Final Score of 79.3496/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: JACLYN COX, D.O. reported a CMS MIPS final score of 79.3496 out of 100, below the 83.1 national average, and filed 20 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JACLYN COX, D.O. 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).

JACLYN COX, D.O. at a glance

Near national average

NPI registry status

Active

Issued 04/09/2010

NPI 1891011250

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

20 98% vs specialty avg

2023 prescription claims

Specialty avg: 888

MIPS final score

79.3496/100 3.750399999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Hospitalist Physician compares to other specialties among Connecticut providers

Connecticut providers

Hospitalist Physician share within Connecticut

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

Medicare quality performance — MIPS

JACLYN COX, D.O.'s 2023 MIPS final score plotted against the Hospitalist Physician national average

Near national average
MIPS Final Score
79.3496/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hospitalist Physician) — 79.3496/100 vs national avg 83.1

0%100%National avg83%79.3%
MIPS final score (Hospitalist Physician) — 79.3496/100 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).

JACLYN COX, D.O. is a Hospitalist Physician provider practicing in FARMINGTON, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1891011250. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JACLYN COX, D.O. appears in the CMS NPPES registry as a Hospitalist Physician provider holding D.O. credentials at 263 FARMINGTON AVE, FARMINGTON, CT, 06030, with a listed phone of (860) 679-6296. NPI 1891011250 was issued on 04/09/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COX 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 20 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $3K in drug spend. 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 79.3496/100 for the 2023 performance year (Quality 69.2231, Cost 48.0871), compared with the national average of 83.1.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

263 FARMINGTON AVE
FARMINGTON, CT 06030

Provider Details

NPI 1891011250
Specialty Hospitalist Physician
Credentials D.O.
Gender Female
NPI Issued 04/09/2010

CMS Quality Score (MIPS)

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

79.3496
Final Score
Avg: 83.1
69.2231
Quality
48.0871
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JACLYN COX, D.O. 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.

UNIVERSITY OF CONNECTICUT HEALTH CENTER
FARMINGTON, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

20
Total Claims
$3K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
28
Total Day Supply
614
Generic Drug Cost
$376

Patient Demographics

Average Patient Age
77.8 years
Avg HCC Risk Score
2.43

Hospitalist Physician Overview

How JACLYN COX, D.O. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

JACLYN COX, D.O.'s 20 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Connecticut

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JACLYN COX, D.O.'s specialty?
JACLYN COX, D.O. specializes in Hospitalist Physician and practices in FARMINGTON, Connecticut. Credentials: D.O..
How much does JACLYN COX, D.O. prescribe under Medicare Part D?
In 2023, JACLYN COX, D.O. wrote 20 Medicare Part D claims totaling $3K in drug costs for 11 beneficiaries.
What is JACLYN COX, D.O.'s Medicare quality score?
JACLYN COX, D.O. has a CMS MIPS Final Score of 79.3496/100 (Quality: 69.2231, Cost: 48.0871). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JACLYN COX, D.O. located?
JACLYN COX, D.O. is located at 263 FARMINGTON AVE, FARMINGTON, CT, 06030. Phone: (860) 679-6296.
What is JACLYN COX, D.O.'s NPI number?
JACLYN COX, D.O.'s National Provider Identifier (NPI) is 1891011250, issued on 04/09/2010.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
Does JACLYN COX, D.O. accept Medicare?
JACLYN COX, D.O. appears in CMS Medicare data with 20 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 JACLYN COX, D.O.'s credentials?
JACLYN COX, D.O.'s NPI is 1891011250 with credentials D.O.. 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