2026 NPPES data Adult Reconstructive Orthopaedic Surgery Physician NPI 1871989095 MD
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DONALD ALLEN, MD

Adult Reconstructive Orthopaedic Surgery Physician in HARTFORD, 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
845
Medicare Part D claims · 312 beneficiaries · Adult Reconstructive Orthopaedic Surgery Physician avg: 493
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$308.07
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DONALD ALLEN, MD reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 845 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
845
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.

DONALD ALLEN, MD's MIPS score vs every scored U.S. clinician

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

75 15th percentile higher than 15% 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)

DONALD ALLEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 DONALD ALLEN, MD?

Below national average

NPI registry status

Active

Issued 04/14/2015

NPI 1871989095

Primary specialty

Adult Reconstructive Orthopaedic Surgery Physician

Niche

1,245 US NPIs in this specialty

Medicare Part D claims

845 71% vs specialty avg

2023 prescription claims

Specialty avg: 493

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Adult Reconstructive Orthopaedic Surgery Physician compares to other specialties among Connecticut providers

Connecticut providers

Adult Reconstructive Orthopaedic Surgery Physician share within Connecticut

1. Adult Reconstructive Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Reconstructive Orthopaedic Surgery Physician share within Connecticut

Medicare quality performance — MIPS

DONALD ALLEN, MD's 2023 MIPS final score plotted against the Adult Reconstructive Orthopaedic Surgery Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Adult Reconstructive Orthopaedic Surgery Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Adult Reconstructive Orthopaedic Surgery Physician) — 75/100 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).

DONALD ALLEN, MD appears in the CMS NPPES registry as a Adult Reconstructive Orthopaedic Surgery Physician provider holding MD credentials at 31 SEYMOUR STREET, HARTFORD, CT, 06106, with a listed phone of (860) 549-3210. NPI 1871989095 was issued on 04/14/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLEN 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 845 prescription claims written by this provider, covering 312 Medicare beneficiaries and totaling roughly $8K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 26.7%. 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 75/100 for the 2023 performance year, compared with the national average of 83.1.

Adult Reconstructive Orthopaedic Surgery Physician is a narrow specialty nationwide, with 1,245 enrolled providers across 51 states and an average of 493 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

31 SEYMOUR STREET
HARTFORD, CT 06106

Provider Details

NPI 1871989095
Specialty Adult Reconstructive Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 04/14/2015

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where DONALD ALLEN, 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.

MCLEAN FUND
SIMSBURY, CT
ORTHOPEDIC ASSOCIATES OF HARTFORD,PC
HARTFORD, 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 DONALD ALLEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$308

Largest payer

Zimmer Biomet Holdings, 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 · Generic-heavy

DONALD ALLEN, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 845 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.

845
Total Claims
$8K
Total Drug Cost
312
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
871
Total Day Supply
11,698
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$3K
Generic Drug Cost
$5K
Opioid Claims
226 (26.7% rate)
Antibiotic Claims
229

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.14
Gender Split
65% female / 35% male
Age Distribution
<65: 28, 65-74: 164, 75-84: 100, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

What DONALD ALLEN, 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
Meloxicam
157
Amoxicillin
155
Hydromorphone Hcl
99
Tramadol Hcl
73
Methocarbamol
66
Methylprednisolone
45
Oxycodone Hcl
37
Gabapentin
33
Clindamycin Hcl
23
Cephalexin
22

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

Adult Reconstructive Orthopaedic Surgery Physician Overview

How DONALD ALLEN, MD fits within the Adult Reconstructive Orthopaedic Surgery Physician landscape nationally.

1,245
Adult Reconstructive Orthopaedic Surgery Physician Providers in US
51
States with Adult Reconstructive Orthopaedic Surgery Physician
493
Avg Claims per Provider

DONALD ALLEN, MD's 845 claims are above the specialty average of 493.

Nearby Adult Reconstructive Orthopaedic Surgery Physician Providers in Connecticut

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

Compare Adult Reconstructive Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DONALD ALLEN, MD's specialty?
DONALD ALLEN, MD specializes in Adult Reconstructive Orthopaedic Surgery Physician and practices in HARTFORD, Connecticut. Credentials: MD.
How much does DONALD ALLEN, MD prescribe under Medicare Part D?
In 2023, DONALD ALLEN, MD wrote 845 Medicare Part D claims totaling $8K in drug costs for 312 beneficiaries.
What is DONALD ALLEN, MD's Medicare quality score?
DONALD ALLEN, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DONALD ALLEN, MD located?
DONALD ALLEN, MD is located at 31 SEYMOUR STREET, HARTFORD, CT, 06106. Phone: (860) 549-3210.
What is DONALD ALLEN, MD's NPI number?
DONALD ALLEN, MD's National Provider Identifier (NPI) is 1871989095, issued on 04/14/2015.
Does DONALD ALLEN, MD prescribe more brand-name or generic drugs?
DONALD ALLEN, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $3K in brand drug costs.
Does DONALD ALLEN, MD prescribe opioids?
Yes, DONALD ALLEN, MD had 226 opioid claims in 2023 with an opioid prescribing rate of 26.7%.
How many Adult Reconstructive Orthopaedic Surgery Physician providers are there in the US?
There are 1,245 Adult Reconstructive Orthopaedic Surgery Physician providers across 51 states in the US. The average Adult Reconstructive Orthopaedic Surgery Physician provider writes 493 Medicare Part D claims per year.
What drugs does DONALD ALLEN, MD prescribe most often?
Based on 2023 Medicare Part D data, DONALD ALLEN, MD's most frequently prescribed drugs include Meloxicam, Amoxicillin, Hydromorphone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONALD ALLEN, MD accept Medicare?
DONALD ALLEN, MD appears in CMS Medicare data with 845 Part D claims and 312 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONALD ALLEN, MD's credentials?
DONALD ALLEN, MD's NPI is 1871989095 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