Dr. Ronald Arthur Cwik, MD

  • New Haven, CT
  • Maternal-fetal medicine specialist
NPI1982819058
Part D claims, 2024
112
Affiliated sites
1
State licenses
2
Year NPI issued
2007
Practice address
20 York St, New Haven, CT 06510
Practice phone
Call (203) 688-2046
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Yale New Haven Hospital

New Haven, Connecticut

See all 2 affiliations

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Dr. Ronald Arthur Cwik is a maternal-fetal medicine specialist in New Haven, Connecticut

Dr. Cwik practices at Yale New Haven Hospital in New Haven, Connecticut.

Dr. Cwik's NPI, 1982819058, was assigned on May 11, 2007. Dr. Cwik graduated from Tufts University School Of Medicine in 1966. Dr. Cwik holds Connecticut license 016040.

NPI and contact details
NPI enumeration date
May 11, 2007
NPI status
Active
Practice phone
(203) 688-2046
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1966

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Ronald Arthur Cwik practices at Yale New Haven Hospital in New Haven, Connecticut

Dr. Cwik's primary practice is Yale New Haven Hospital, at 20 York St, New Haven, CT 06510 in South Central Ct County. The practice phone is (203) 688-2046.

  • Yale New Haven Hospital
    20 York St, New Haven, CT 06510 · South Central Ct CountyPhone(203) 688-2046

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Ronald Arthur Cwik is affiliated with 2 sites of care

Dr. Cwik's primary practice is Yale New Haven Hospital in New Haven, Connecticut. Dmand AI also links Dr. Cwik to 1 physician office, named with a free account.

Yale New Haven HospitalNew Haven, ConnecticutPrimary
1 physician officeName with a free account
See all 2 affiliations for Dr. Cwik

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Ronald Arthur Cwik's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cwik practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Yale New Haven HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ronald Arthur Cwik is one of 54 maternal-fetal medicine specialists in Connecticut

Maternal and fetal medicine is Dr. Cwik's primary specialty in the NPI Registry, under taxonomy code 207VM0101X. Dr. Cwik is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Cwik's licenses on file in 2 states: Connecticut and California.

Specialties and state licenses

  • Maternal and fetal medicine, ConnecticutPrimaryLicense 016040 · 1973 to 2026 · taxonomy 207VM0101X
  • California licenseSince 1971

Maternal-fetal medicine specialists near Dr. Cwik

Counts of maternal-fetal medicine specialists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ronald Arthur Cwik's patients have a median age of 63

Across all payers, Dmand AI patient panel data puts Dr. Cwik's median patient age at 63, with 100% women.

Dr. Cwik's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Dr. Ronald Arthur Cwik wrote 112 Medicare Part D claims in 2024

In 2024, Dr. Cwik wrote 112 Medicare Part D claims for 50 patients. 90% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $170 in total drug cost.

Part D claims, 2024112
Drugs named by CMS1
Total drug cost$170
Part D patients50

Dr. Cwik's Part D claims by kind of drug, 2024

  • Generic101 claims90%
  • Brand-name11 claims10%

Dr. Cwik's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Dr. Cwik

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Ronald Arthur Cwik has 1 award and honors on record

Dmand AI lists 1 award for Dr. Cwik.

Awards and honors for Dr. Cwik

  1. Undated
    • ACOG Fellow

Source: Dmand AI Professional Profile Data

Dr. Ronald Arthur Cwik graduated from Tufts University School Of Medicine

Dr. Cwik graduated from Tufts University School Of Medicine in 1966. Dr. Cwik is a member of American College of Obstetricians and Gynecologists.

  1. Medical schoolTufts University School Of Medicine
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Sources for Dr. Ronald Arthur Cwik's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ronald Arthur Cwik

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ronald Arthur Cwik's NPI number?

Dr. Ronald Arthur Cwik's NPI number is 1982819058. It was assigned on May 11, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Ronald Arthur Cwik?

Dr. Ronald Arthur Cwik is a maternal-fetal medicine specialist in New Haven, Connecticut. The primary specialty in the NPI Registry is Maternal & Fetal Medicine Physician (taxonomy code 207VM0101X).

Where does Dr. Ronald Arthur Cwik practice?

Dr. Cwik practices at 20 York St, New Haven, CT 06510. Dr. Cwik's primary practice is Yale New Haven Hospital in New Haven, Connecticut. Dmand AI also links Dr. Cwik to 1 physician office.

What is Dr. Ronald Arthur Cwik's office phone number?

The practice phone on file for Dr. Cwik is (203) 688-2046.

What is Dr. Ronald Arthur Cwik's medical license number?

Dr. Cwik holds Connecticut license 016040, one of the licenses on file in 2 states.

Which states has Dr. Ronald Arthur Cwik been licensed in?

Dmand AI has state licenses on file for Dr. Cwik in Connecticut (1973 to 2026) and California (since 1971).

Is Dr. Ronald Arthur Cwik board certified?

Yes. Dr. Cwik is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.

Where did Dr. Ronald Arthur Cwik go to medical school?

Dr. Cwik graduated from Tufts University School Of Medicine in 1966.

What drugs does Dr. Ronald Arthur Cwik prescribe most?

In 2024 Medicare Part D data, Dr. Cwik's most prescribed drugs by claims were Alendronate Sodium.

How long has Dr. Ronald Arthur Cwik been practicing?

Dr. Cwik graduated from medical school in 1966, 60 years ago.

Selling to maternal and fetal medicine practices?

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