2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1639506967 D.O.
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HANS KNOPP, D.O.

Physical Medicine & Rehabilitation Physician in WEST 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
3K
Medicare Part D claims · 416 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.3K
156 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: HANS KNOPP, D.O. is a Physical Medicine & Rehabilitation Physician ([object Object]) practicing in WEST HARTFORD, Connecticut with a Medicare Part D prescribing footprint of 3K claims across 416 beneficiaries — 20% brand-name prescribing . Industry payments of $2.3K across 156 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: HANS KNOPP, D.O. filed 2,584 Medicare Part D claims in 2023 across WEST HARTFORD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

HANS KNOPP, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

HANS KNOPP, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/01/2013

NPI 1639506967

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

2,584 231% vs specialty avg

2023 prescription claims

Specialty avg: 781

Specialty distribution in Connecticut

How Physical Medicine & Rehabilitation Physician compares to other specialties among Connecticut providers

Connecticut providers

Physical Medicine & Rehabilitation Physician share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Physical Medicine & Rehabilitation Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physical Medicine & Rehabilitation Physician ABMS/AOA estimate

Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — ABMS / AOA estimate

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).

HANS KNOPP, D.O. is a Physical Medicine & Rehabilitation Physician provider practicing in WEST HARTFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1639506967. 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.

HANS KNOPP, D.O. appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding D.O. credentials at 61 S MAIN ST STE 308, WEST HARTFORD, CT, 06107, with a listed phone of (201) 370-6601. NPI 1639506967 was issued on 10/01/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KNOPP 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 2,584 prescription claims written by this provider, covering 416 Medicare beneficiaries and totaling roughly $483K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 53.3%. 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.

Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 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

61 S MAIN ST STE 308
WEST HARTFORD, CT 06107

Provider Details

NPI 1639506967
Specialty Physical Medicine & Rehabilitation Physician
Credentials D.O.
Gender Male
NPI Issued 10/01/2013

Hospital and facility affiliations

Facilities where HANS KNOPP, 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.

HARTFORD HEALTHCARE MEDICAL GROUP SPECIALISTS PLLC
STORRS, 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 HANS KNOPP, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

Largest payer

Salix Pharmaceuticals, a division of Bausch Health US, LLC

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

HANS KNOPP, D.O. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 2,584 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.

2,584
Total Claims
$483K
Total Drug Cost
416
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,882
Total Day Supply
79,120
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$349K
Generic Drug Cost
$134K
Opioid Claims
1,376 (53.3% rate)

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
1.74
Gender Split
66% female / 34% male
Age Distribution
<65: 117, 65-74: 170, 75-84: 97, 85+: 32

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pregabalin
309
Gabapentin
209
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
200
Belbuca
Buprenorphine Hcl
189
Oxycodone Hcl
168
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
155
Hydromorphone Hcl
146
Buprenorphine
136
Tramadol Hcl
113
Diclofenac Sodium
76

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

Physical Medicine & Rehabilitation Physician Overview

How HANS KNOPP, D.O. fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

HANS KNOPP, D.O.'s 2,584 claims are above the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in Connecticut

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

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HANS KNOPP, D.O.'s specialty?
HANS KNOPP, D.O. specializes in Physical Medicine & Rehabilitation Physician and practices in WEST HARTFORD, Connecticut. Credentials: D.O..
How much does HANS KNOPP, D.O. prescribe under Medicare Part D?
In 2023, HANS KNOPP, D.O. wrote 2,584 Medicare Part D claims totaling $483K in drug costs for 416 beneficiaries.
Where is HANS KNOPP, D.O. located?
HANS KNOPP, D.O. is located at 61 S MAIN ST STE 308, WEST HARTFORD, CT, 06107. Phone: (201) 370-6601.
What is HANS KNOPP, D.O.'s NPI number?
HANS KNOPP, D.O.'s National Provider Identifier (NPI) is 1639506967, issued on 10/01/2013.
Does HANS KNOPP, D.O. prescribe more brand-name or generic drugs?
HANS KNOPP, D.O.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $349K in brand drug costs.
Does HANS KNOPP, D.O. prescribe opioids?
Yes, HANS KNOPP, D.O. had 1,376 opioid claims in 2023 with an opioid prescribing rate of 53.3%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does HANS KNOPP, D.O. prescribe most often?
Based on 2023 Medicare Part D data, HANS KNOPP, D.O.'s most frequently prescribed drugs include Pregabalin, Gabapentin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HANS KNOPP, D.O. accept Medicare?
HANS KNOPP, D.O. appears in CMS Medicare data with 2,584 Part D claims and 416 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HANS KNOPP, D.O.'s credentials?
HANS KNOPP, D.O.'s NPI is 1639506967 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.
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