Ryan Guzik, DO
Emergency Medicine Physician · Newton, NJ
Ryan Guzik, DO is an emergency medicine physician with a practice address in Newton, New Jersey, and NPI 1639531064, issued on Mar 24, 2016. Check the license (New Jersey 25MB10504100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ryan Guzik
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 25MB10504100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 175 High St, Newton, NJ 07860
- Phone
- (973) 383-2121
- Enumerated
- Mar 24, 2016
- Record last updated
- Jun 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,754 in New Jersey → Look up another NPI →
Also registered at 175 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shumaila Alam, M.D.Family Medicine Physician1851732143
- Aditi Amin, MDInternal Medicine Physician1801384193
Verify Ryan Guzik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MB10504100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average emergency medicine physician in 2024
147 Medicare Part D claims for 114 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass17 claims
- Oxycodone-Acetaminophen14 claims
- Lidocaine12 claims
- Cephalexin11 claims
- Tramadol Hcl11 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 Guzik among 1,754 emergency medicine physician records in New Jersey
Ryan Guzik, DO is one of 1,754 emergency medicine physician records with a practice address in New Jersey. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 emergency medicine physician records list a practice address in Newton
They are 7 of the 503 NPPES records with a practice address in Newton, and 1,754 emergency medicine physician records in New Jersey.
All 1,754 in New Jersey → Every provider in Newton → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ellen Benson, M.D.Newton, NJ 078601871603027
- Veronica Gabra, DONewton, NJ 078601982164752
- Dorothy Konomos, DONewton, NJ 078601730522269
- Joseph Limarzi, M.D.Newton, NJ 078601295781797
- Ronald Mack, MDNewton, NJ 078601386683894
- Christopher Okechukwu, MDNewton, NJ 078601275528143
- Robert Liegner, MDRandolph, NJ 078691235188715
- Raghunandan Varma, DORandolph, NJ 078691851489231
Common questions
What is Ryan Guzik, DO's NPI number?
Ryan Guzik, DO's National Provider Identifier (NPI) is 1639531064, issued on Mar 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Guzik, DO located?
The NPPES record lists a practice address at 175 High St, Newton, NJ, 07860. Phone: (973) 383-2121. Providers update this record themselves, so call before visiting.
How can I verify Ryan Guzik, DO's license?
NPPES lists New Jersey license number 25MB10504100, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Guzik, DO prescribe under Medicare Part D?
In 2024, Ryan Guzik, DO had 147 Medicare Part D claims for 114 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.