2026 NPPES data Pediatrics Physician NPI 1720267727 M.D.
Verify on CMS →

SUSAN MARKEL, M.D.

Pediatrics Physician in SIMSBURY, 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
79
Medicare Part D claims · 55 beneficiaries · Pediatrics Physician avg: 762

What the federal data shows

SUSAN MARKEL, M.D. filed 79 Medicare Part D claims in 2023 as a Pediatrics Physician in SIMSBURY, Connecticut.

79
Part D claims, 2023

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.

SUSAN MARKEL, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

79 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

SUSAN MARKEL, M.D. 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).

What does the federal data show about SUSAN MARKEL, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/26/2007

NPI 1720267727

Primary specialty

Pediatrics Physician

High-volume

80,574 US NPIs in this specialty

Medicare Part D claims

79 90% vs specialty avg

2023 prescription claims

Specialty avg: 762

Specialty distribution in Connecticut

How Pediatrics Physician compares to other specialties among Connecticut providers

Connecticut providers

Pediatrics Physician share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Pediatrics Physician (ABMS / AOA reference)

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

Est. board-certified rate (Pediatrics Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatrics 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).

SUSAN MARKEL, M.D. appears in the CMS NPPES registry as a Pediatrics Physician provider holding M.D. credentials at 17 LIBRARY LN, SIMSBURY, CT, 06070, with a listed phone of (860) 690-6305. NPI 1720267727 was issued on 10/26/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARKEL 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 79 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $1K 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.

Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 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

17 LIBRARY LN
SIMSBURY, CT 06070

Provider Details

NPI 1720267727
Specialty Pediatrics Physician
Credentials M.D.
Gender Female
NPI Issued 10/26/2007

Medicare Part D Prescribing Data

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

79
Total Claims
$1K
Total Drug Cost
55
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
79
Total Day Supply
560
Generic Drug Cost
$714
Antibiotic Claims
50

Patient Demographics

Average Patient Age
68.9 years
Avg HCC Risk Score
0.77
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Azithromycin
27

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

Pediatrics Physician Overview

How SUSAN MARKEL, M.D. fits within the Pediatrics Physician landscape nationally.

80,574
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider

SUSAN MARKEL, M.D.'s 79 claims are below the specialty average of 762.

Nearby Pediatrics Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is SUSAN MARKEL, M.D.'s specialty?
SUSAN MARKEL, M.D. specializes in Pediatrics Physician and practices in SIMSBURY, Connecticut. Credentials: M.D..
How much does SUSAN MARKEL, M.D. prescribe under Medicare Part D?
In 2023, SUSAN MARKEL, M.D. wrote 79 Medicare Part D claims totaling $1K in drug costs for 55 beneficiaries.
Where is SUSAN MARKEL, M.D. located?
SUSAN MARKEL, M.D. is located at 17 LIBRARY LN, SIMSBURY, CT, 06070. Phone: (860) 690-6305.
What is SUSAN MARKEL, M.D.'s NPI number?
SUSAN MARKEL, M.D.'s National Provider Identifier (NPI) is 1720267727, issued on 10/26/2007.
How many Pediatrics Physician providers are there in the US?
There are 80,574 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
What drugs does SUSAN MARKEL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SUSAN MARKEL, M.D.'s most frequently prescribed drugs include Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUSAN MARKEL, M.D. accept Medicare?
SUSAN MARKEL, M.D. appears in CMS Medicare data with 79 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN MARKEL, M.D.'s credentials?
SUSAN MARKEL, M.D.'s NPI is 1720267727 with credentials M.D.. 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