Quick answers
- Does John D. Gumina accept Medicare assignment?
- Yes. Medicare's clinician data says John D. Gumina accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does John D. Gumina see?
- In 2024, CMS data shows 323 Original Medicare patients and 3,258 services for John D. Gumina. This counts Original Medicare only and measures volume, not quality.
- What is John D. Gumina's NPI number?
- 1831169515. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John D. Gumina, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 323 |
|---|---|
| Services billed to Medicare | 3,258 |
| Different services or procedures | 60 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)1,022 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)793 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)499 services
- Administration of influenza virus vaccine (G0008)153 services
- Influenza vaccine split virus, preservative free (90662)146 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease38%
- Diabetes32%
- Anxiety32%
Hospitals where John D. Gumina works
Medicare's Facility Affiliation Data lists John D. Gumina at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Centrastate Medical CenterFreehold, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310111
- Jersey Shore University Medical CenterNeptune, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310073
- Ocean Medical CenterBrick, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310052
Practice locations
Addresses where John D. Gumina is enrolled with Medicare (CMS data updated October 2, 2026).
- 3499 Route 9 NFreehold, NJ 07728 (732) 625‑3166
- 4764 Route 9 SHowell, NJ 07731 (732) 370‑3563
Group practices
Medicare enrollment lists John D. Gumina as a member of this group (CMS data updated October 2, 2026).
- Hackensack Meridian Health Medical Group - Primary Care PC358 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Freehold
Clinicians with the same Medicare primary specialty in Freehold, NJ — not a recommendation.
Other clinicians in Hackensack Meridian Health Medical Group - Primary Care PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1970 (56 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831169515 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians