Joseph Marzano, M.D.
NPI 1427052133 · Gastroenterology Physician · Red Bank, NJ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Marzano, M.D. is a Gastroenterology Physician provider in Red Bank, NJ (NPI 1427052133).
Provider details
- NPI number
- 1427052133
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- MA63438 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
685 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 347 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 158 | $176 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 94 | $95 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 64 | $117 |
| Imaging of Digestive Tract Done From the Inside of the Digestive Tract91110 | 22 | $779 |
Typical Medicare-allowed amounts for these services range $95–$779 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 355 | 112 |
| Pantoprazole Sodium | 327 | 130 |
| Dicyclomine Hcl | 132 | 48 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 128 | 126 |
| Famotidine | 65 | 27 |
| Colesevelam Hcl | 49 | 19 |
| Mesalamine | 42 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,117 across 55 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joseph Marzano's NPI number?
- Joseph Marzano's National Provider Identifier (NPI) is 1427052133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Marzano's specialty?
- Joseph Marzano is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Marzano located?
- Joseph Marzano's practice location on file with NPPES is 365 Broad St, Red Bank, NJ 07701-2150.
- What is Joseph Marzano's phone number?
- The practice phone number listed in the NPPES registry for Joseph Marzano is (732) 842-4294.
- Does Joseph Marzano accept Medicare?
- Joseph Marzano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Marzano's NPI active?
- Yes — Joseph Marzano's NPI (1427052133) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.