NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1730590860 M.D.
Verify on CMS → Mary Beth Van Siclen, M.D.
Family Medicine Physician in Durham, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,125 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 255 beneficiaries · Family Medicine Physician avg: 4K
What the federal data shows
Mary Beth Van Siclen, M.D. filed 1,602 Medicare Part D claims in 2024 as a Family Medicine Physician in Durham, Connecticut.
- 2K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥81st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Mary Beth Van Siclen, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1730590860), first enumerated 05/12/2014.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,602 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1730590860 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1730590860
- ENUM-MID 2014
- TAX-MEGA 150K Family Medicine
- RX-MID 1,602
- BOOK-LIGHT 923 in Connecticut
- PHOTO-ENUM Grace Greer · 2014
Mary Beth Van Siclen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,602 ≥ 81st percentile 81% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Mary Beth Van Siclen, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Mary Beth Van Siclen, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
1,602 54% vs specialty avg
Specialty distribution in Connecticut
How Family Medicine Physician compares to other specialties among Connecticut providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1730590860 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 05/12/2014 |
Hospital and facility affiliations
Facilities where Mary Beth Van Siclen, M.D. 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.
Middlesex Hospital
★★★☆☆ 3/5
Middletown, CT
Acute Care Hospitals
CMS CCN: 070020
Mhs Primary Care, Inc.
Durham, 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 2024.
1,602
Total Claims
$192K
Total Drug Cost
255
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,452.033
- Total Day Supply
- 98,920
- Generic Drug Cost
- $26K
- Opioid Claims
- 22 (1.4% rate)
- Antibiotic Claims
- 40
Patient Demographics
- Average Patient Age
- 75.6 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mary Beth Van Siclen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
111 claims
- Lisinopril
Lisinopril
69 claims
- Escitalopram Oxalate
Escitalopram Oxalate
64 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
64 claims
- Pantoprazole Sodium
Pantoprazole Sodium
58 claims
- Amlodipine Besylate
Amlodipine Besylate
54 claims
- Levothyroxine Sodium
Levothyroxine Sodium
48 claims
- Ozempic 44
Ozempic
44 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 111 |
| Lisinopril | 69 |
| Escitalopram Oxalate | 64 |
| Rosuvastatin Calcium | 64 |
| Pantoprazole Sodium | 58 |
| Amlodipine Besylate | 54 |
| Levothyroxine Sodium | 48 |
| Ozempic Semaglutide | 44 |
| Gabapentin | 28 |
| Losartan Potassium | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Mary Beth Van Siclen, M.D. fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Mary Beth Van Siclen, M.D.'s 1,602 claims are below the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Van Siclen, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Van Siclen.
One of 923 Family Medicine Physician providers enrolled in Connecticut, 5 are shown here.
Dr. Thomas Abbenante
M.D.
Milford, CT
Dr. Yadira Acevedo
MD
Portland, CT
Dr. Rodrigo Acosta
M.D.
Stamford, CT
Dr. Momina Afrede
DO
Vernon, CT
Dr. Alireza Afshar
MD
Newtown, CT
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mary Beth Van Siclen, M.D.'s specialty? ▼
Mary Beth Van Siclen, M.D. specializes in Family Medicine Physician and practices in Durham, Connecticut. Credentials: M.D..
How much does Mary Beth Van Siclen, M.D. prescribe under Medicare Part D? ▼
In 2024, Mary Beth Van Siclen, M.D. wrote 1,602 Medicare Part D claims totaling $192K in drug costs for 255 beneficiaries.
Where is Mary Beth Van Siclen, M.D. located? ▼
Mary Beth Van Siclen, M.D. is located at 6 MAIN ST, Durham, CT, 06422. Phone: (860) 358-5020.
What is Mary Beth Van Siclen, M.D.'s NPI number? ▼
Mary Beth Van Siclen, M.D.'s National Provider Identifier (NPI) is 1730590860, issued on 05/12/2014.
Does Mary Beth Van Siclen, M.D. prescribe opioids? ▼
Yes, Mary Beth Van Siclen, M.D. had 22 opioid claims in 2024 with an opioid prescribing rate of 1.4%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Mary Beth Van Siclen, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Mary Beth Van Siclen, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Beth Van Siclen, M.D. accept Medicare? ▼
Mary Beth Van Siclen, M.D. appears in CMS Medicare data with 1,602 Part D claims and 255 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Beth Van Siclen, M.D.'s credentials? ▼
Mary Beth Van Siclen, M.D.'s NPI is 1730590860 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.