Ryan Marc Lieberman, MD
Psychiatry Physician · Norwalk, CT
Ryan Marc Lieberman, MD is a psychiatry physician with a practice address in Norwalk, Connecticut, and NPI 1548483654, issued on Apr 10, 2007. Check the license (Connecticut 043846, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Marc Lieberman
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 043846 CT
Self-reported in NPPES; status is on the state search - Practice location
- 34 Maple St, Norwalk, CT 06850
- Phone
- (203) 852-2388
- Enumerated
- Apr 10, 2007
- Record last updated
- Mar 7, 2023
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Also registered at 34 Maple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Marc Lieberman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 043846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average psychiatry physician in 2024
372 Medicare Part D claims for 29 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Clonazepam38 claims
- Trazodone Hcl37 claims
- Escitalopram Oxalate31 claims
- Dextroamphetamine-Amphet Er27 claims
- Quetiapine Fumarate19 claims
- Venlafaxine Hcl Er19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Ryan Marc Lieberman among 1,174 psychiatry physician records in Connecticut
Ryan Marc Lieberman, MD is one of 1,174 psychiatry physician records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 44% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 psychiatry physician records list a practice address in Norwalk
They are 22 of the 1,993 NPPES records with a practice address in Norwalk, and 1,174 psychiatry physician records in Connecticut.
All 1,174 in Connecticut → Every provider in Norwalk → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- William Eckerd, M.D.Norwalk, CT 068501780740365
- Adam Fogel, DONorwalk, CT 068501285977058
- Harold Ginsberg, M.D.Norwalk, CT 068501801913397
- Gabriela HayesNorwalk, CT 068501326304379
- George Kelly, M.D.Norwalk, CT 068501417140815
- Alexander Koleszar, M.D.Norwalk, CT 068501508922188
- Richard Maiberger, M.D.Norwalk, CT 068501013073683
- Katherine Michael, M.D.Norwalk, CT 068501174569172
Common questions
What is Ryan Marc Lieberman, MD's NPI number?
Ryan Marc Lieberman, MD's National Provider Identifier (NPI) is 1548483654, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Marc Lieberman, MD located?
The NPPES record lists a practice address at 34 Maple St, Norwalk, CT, 06850. Phone: (203) 852-2388. Providers update this record themselves, so call before visiting.
How can I verify Ryan Marc Lieberman, MD's license?
NPPES lists Connecticut license number 043846, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Marc Lieberman, MD prescribe under Medicare Part D?
In 2024, Ryan Marc Lieberman, MD had 372 Medicare Part D claims for 29 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.