2026 NPPES data Hematology & Oncology Physician NPI 1497850614 MD
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PAUL DEKKER, MD

Hematology & Oncology 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
4K
Medicare Part D claims · 354 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$116.59
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: PAUL DEKKER, MD is a Hematology & Oncology Physician ([object Object]) practicing in HARTFORD, Connecticut with a Medicare Part D prescribing footprint of 4K claims across 354 beneficiaries — 10% brand-name prescribing . Industry payments of $116.59 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: PAUL DEKKER, MD filed 3,700 Medicare Part D claims in 2023 across HARTFORD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

PAUL DEKKER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

PAUL DEKKER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 09/13/2006

NPI 1497850614

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

3,700 337% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Connecticut

How Hematology & Oncology Physician compares to other specialties among Connecticut providers

Connecticut providers

Hematology & Oncology Physician share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Hematology & Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hematology & Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Hematology & Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hematology & Oncology 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).

PAUL DEKKER, MD is a Hematology & Oncology Physician provider practicing in HARTFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1497850614. 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.

PAUL DEKKER, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 85 SEYMOUR ST, HARTFORD, CT, 06106, with a listed phone of (860) 246-6647. NPI 1497850614 was issued on 09/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEKKER 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 3,700 prescription claims written by this provider, covering 354 Medicare beneficiaries and totaling roughly $731K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 2.4%. 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

85 SEYMOUR ST
HARTFORD, CT 06106

Provider Details

NPI 1497850614
Specialty Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 09/13/2006

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 PAUL DEKKER, MD. Source: openpaymentsdata.cms.gov.

Total received

$117

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

PAUL DEKKER, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 3,700 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.

3,700
Total Claims
$731K
Total Drug Cost
354
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,240
Total Day Supply
272,267
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$558K
Generic Drug Cost
$172K
Opioid Claims
90 (2.4% rate)
Antibiotic Claims
105

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
1.33
Gender Split
54% female / 46% male
Age Distribution
<65: 16, 65-74: 141, 75-84: 133, 85+: 64

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
368
Amlodipine Besylate
207
Levothyroxine Sodium
136
Alprazolam
124
Hydrochlorothiazide
124
Lisinopril
113
Simvastatin
110
Metformin Hcl
102
Valsartan-Hydrochlorothiazide
Valsartan/Hydrochlorothiazide
85
Losartan Potassium
84

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

Hematology & Oncology Physician Overview

How PAUL DEKKER, MD fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

PAUL DEKKER, MD's 3,700 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Connecticut

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PAUL DEKKER, MD's specialty?
PAUL DEKKER, MD specializes in Hematology & Oncology Physician and practices in HARTFORD, Connecticut. Credentials: MD.
How much does PAUL DEKKER, MD prescribe under Medicare Part D?
In 2023, PAUL DEKKER, MD wrote 3,700 Medicare Part D claims totaling $731K in drug costs for 354 beneficiaries.
Where is PAUL DEKKER, MD located?
PAUL DEKKER, MD is located at 85 SEYMOUR ST, HARTFORD, CT, 06106. Phone: (860) 246-6647.
What is PAUL DEKKER, MD's NPI number?
PAUL DEKKER, MD's National Provider Identifier (NPI) is 1497850614, issued on 09/13/2006.
Does PAUL DEKKER, MD prescribe more brand-name or generic drugs?
PAUL DEKKER, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $558K in brand drug costs.
Does PAUL DEKKER, MD prescribe opioids?
Yes, PAUL DEKKER, MD had 90 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does PAUL DEKKER, MD prescribe most often?
Based on 2023 Medicare Part D data, PAUL DEKKER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PAUL DEKKER, MD accept Medicare?
PAUL DEKKER, MD appears in CMS Medicare data with 3,700 Part D claims and 354 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PAUL DEKKER, MD's credentials?
PAUL DEKKER, MD's NPI is 1497850614 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.
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