Laurence Gruenwald, MD
Pediatrics Physician · Millburn, NJ
Laurence Gruenwald, MD is a pediatrics physician with a practice address in Millburn, New Jersey, and NPI 1508868191, issued on Aug 12, 2005. Check the license (New Jersey 25MA03453900, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Laurence Gruenwald
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 25MA03453900 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 90 Millburn Ave, Millburn, NJ 07041
- Phone
- (973) 378-7990
- Enumerated
- Aug 12, 2005
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (973) 378-7991
- Medicaid ID
- 1647300 NJ
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,181 in New Jersey → Look up another NPI →
Also registered at 90 Millburn Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Alexander, MDPediatrics Physician1922000520
- Meredith Carleton, PSY.D., ATR-BCClinical Child & Adolescent Psychologist1518377597
- Ann Marie Comandatore, MDPediatrics Physician1467454066
- Meredith Cregg-Wedmore, PSY.D.Psychologist1427404896
- Nancy Distel, PH.D.Clinical Psychologist1801814777
- Michael Ehrenreich, M.D.Dermatology Physician1124249644
Verify Laurence Gruenwald 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 25MA03453900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average pediatrics physician in 2024
58 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 11 claims were for opioids.
Most prescribed
- Citalopram Hbr18 claims
- Acetaminophen-Codeine11 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.
Laurence Gruenwald among 2,181 pediatrics physician records in New Jersey
Laurence Gruenwald, MD is one of 2,181 pediatrics physician records with a practice address in New Jersey. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 pediatrics physician records list a practice address in Millburn
They are 17 of the 403 NPPES records with a practice address in Millburn, and 2,181 pediatrics physician records in New Jersey.
All 2,181 in New Jersey → Every provider in Millburn → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Andrea Alexander, MDMillburn, NJ 070411922000520
- Melissa Brown, M.D.Millburn, NJ 070411568513943
- Amy Buono, M.D.Millburn, NJ 070411881902799
- Ann Marie Comandatore, MDMillburn, NJ 070411467454066
- Kelly Knowles, MDMillburn, NJ 070411003895798
- Yilda Mayo, M.D.Millburn, NJ 070411922244169
- Yanina Meshko, MDMillburn, NJ 070411295783421
- Yael Miller, MDMillburn, NJ 070411417959057
Common questions
What is Laurence Gruenwald, MD's NPI number?
Laurence Gruenwald, MD's National Provider Identifier (NPI) is 1508868191, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Laurence Gruenwald, MD located?
The NPPES record lists a practice address at 90 Millburn Ave, Millburn, NJ, 07041. Phone: (973) 378-7990. Providers update this record themselves, so call before visiting.
How can I verify Laurence Gruenwald, MD's license?
NPPES lists New Jersey license number 25MA03453900, 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 Laurence Gruenwald, MD prescribe under Medicare Part D?
In 2024, Laurence Gruenwald, MD had 58 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.