Joseph Howard Gronich, MD
Nephrology Physician · Willow Grove, PA
Joseph Howard Gronich, MD is a nephrology physician with a practice address in Willow Grove, Pennsylvania, and NPI 1316029564, issued on Oct 19, 2006. Check the license (Pennsylvania MD047133L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Joseph Howard Gronich
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- MD047133L PA
Self-reported in NPPES; status is on the state search - Practice location
- 735 Fitzwatertown RD, Willow Grove, PA 19090
- Phone
- (215) 657-2012
- Enumerated
- Oct 19, 2006
- Record last updated
- May 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (215) 657-2018
- Medicaid ID
- 0012921330003 PA
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 651 in Pennsylvania → Look up another NPI →
Also registered at 735 Fitzwatertown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Arthur Castelbaum, MDReproductive Endocrinology Physician1700866670
- Nisha Cohen, M.D.Obstetrics & Gynecology Physician1265745251
- Deirdre Collins, M.D.Nephrology Physician1780793430
Verify Joseph Howard Gronich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD047133LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average nephrology physician in 2024
1,337 Medicare Part D claims for 215 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Amlodipine Besylate95 claims
- Hydralazine Hcl81 claims
- Potassium Citrate Er78 claims
- Allopurinol75 claims
- Losartan Potassium73 claims
- Calcitriol70 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.
Industry payments in 2024: $548.71
27 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Joseph Howard Gronich among 651 nephrology physician records in Pennsylvania
Joseph Howard Gronich, MD is one of 651 nephrology physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2008 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 nephrology physician records list a practice address in Willow Grove
They are 13 of the 562 NPPES records with a practice address in Willow Grove, and 651 nephrology physician records in Pennsylvania.
All 651 in Pennsylvania → Every provider in Willow Grove → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Deirdre Collins, M.D.Willow Grove, PA 190901780793430
- Brian Cronin, MDWillow Grove, PA 190901033135918
- Lawrence Freitas, M.D.Willow Grove, PA 190901477500718
- Victor Ghantous, M.DWillow Grove, PA 190901356363253
- Juanita Kcomt, MDWillow Grove, PA 190901285744516
- Majid Khan, M.D.Willow Grove, PA 190901083983886
- Saad Khan, MDWillow Grove, PA 190901679094676
- Inessa Parkansky, MDWillow Grove, PA 190901861455602
Common questions
What is Joseph Howard Gronich, MD's NPI number?
Joseph Howard Gronich, MD's National Provider Identifier (NPI) is 1316029564, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Howard Gronich, MD located?
The NPPES record lists a practice address at 735 Fitzwatertown RD, Willow Grove, PA, 19090. Phone: (215) 657-2012. Providers update this record themselves, so call before visiting.
How can I verify Joseph Howard Gronich, MD's license?
NPPES lists Pennsylvania license number MD047133L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Howard Gronich, MD prescribe under Medicare Part D?
In 2024, Joseph Howard Gronich, MD had 1,337 Medicare Part D claims for 215 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.