Dr. David J. Greifinger, MD
- Medicare services, 2024
- 36
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 18
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 36 Newark Ave, Belleville, NJ 07109
- Practice phone
- Call (973) 759-8284
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Essex Orthopaedic Group
Belleville, New Jersey
Find Dr. Greifinger's professional email, personal email and mobile number
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Dr. David J. Greifinger is an orthopedic surgeon in Belleville, New Jersey
Dr. Greifinger practices at Essex Orthopaedic Group in Belleville, New Jersey.
Dr. Greifinger's NPI, 1043213499, was assigned on May 31, 2005. Dr. Greifinger graduated from University of Maryland School of Medicine in 1973. Dr. Greifinger holds New Jersey license MA34734.
- NPI
- 1043213499NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183779630
- NPI enumeration date
- May 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (973) 759-8284
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David J. Greifinger practices at Essex Orthopaedic Group in Belleville, New Jersey
Dr. Greifinger's primary practice is Essex Orthopaedic Group, at 36 Newark Ave, Belleville, NJ 07109 in Essex County. The practice phone is (973) 759-8284.
- Essex Orthopaedic Group36 Newark Ave, Belleville, NJ 07109 · Essex CountyPhone(973) 759-8284
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David J. Greifinger is affiliated with 2 sites of care
Dr. Greifinger's primary practice is Essex Orthopaedic Group in Belleville, New Jersey. Dmand AI also links Dr. Greifinger to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David J. Greifinger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greifinger practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essex Orthopaedic Group | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David J. Greifinger is one of 644 orthopedic surgeons in New Jersey
Orthopaedic surgery is Dr. Greifinger's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Greifinger is licensed in New Jersey.
Specialties and state licenses
- Orthopaedic surgery, New JerseyPrimary
Orthopedic surgeons near Dr. Greifinger
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David J. Greifinger billed Medicare for 36 services in 2024
CMS data shows 36 Medicare services from Dr. Greifinger across 2 procedure codes in 2024, all of them office visits, for 26 Medicare patients. Medicare paid $5,062 for them. Every service was in an office.
Dr. Greifinger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 282024: 3629%
- Drugs given in the office
- 2023: 182024: 0100%
- Surgery
- 2023: 382024: 0100%
Dr. Greifinger compared with the New Jersey median for orthopedic surgeons, 2024
- Dr. Greifinger
- New Jersey median
- Medicare services
- 36vs 1,32697% below
- Medicare patients
- 26vs 28091% below
- Part D claims
- 23vs 7971% below
Medians across 604 orthopedic surgeons in New Jersey with Dmand AI profiles that report each measure.
Dr. Greifinger's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David J. Greifinger treated 26 Medicare patients in 2024, average age 76
CMS counts 26 Medicare patients who saw Dr. Greifinger in 2024. The largest group is 75 to 84, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.84, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Greifinger's median patient age at 67, with 70% women.
Dr. Greifinger's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Greifinger's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greifinger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David J. Greifinger wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Greifinger wrote 18 Medicare Part D claims. 94% of them were for generic drugs. They cover 1 drug, with $85 in total drug cost. In 2017, CMS named 28 claims across 2 drugs.
Dr. Greifinger's Part D claims by kind of drug, 2024
- Generic17 claims94%
- Brand-name and other1 claims6%
Dr. Greifinger's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 282018: 2318%
Drugs named by CMS: 1 in 2018, 2 in 2017.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David J. Greifinger takes part in Medicare
Dr. Greifinger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David J. Greifinger graduated from University of Maryland School of Medicine
Dr. Greifinger graduated from University of Maryland School of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David J. Greifinger's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David J. Greifinger
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What is Dr. David J. Greifinger's NPI number?
Dr. David J. Greifinger's NPI number is 1043213499. It was assigned on May 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David J. Greifinger?
Dr. David J. Greifinger is an orthopedic surgeon in Belleville, New Jersey. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. David J. Greifinger practice?
Dr. Greifinger practices at 36 Newark Ave, Belleville, NJ 07109. Dr. Greifinger's primary practice is Essex Orthopaedic Group in Belleville, New Jersey. Dmand AI also links Dr. Greifinger to 1 physician office.
What is Dr. David J. Greifinger's office phone number?
The practice phone on file for Dr. Greifinger is (973) 759-8284.
What is Dr. David J. Greifinger's medical license number?
Dr. Greifinger holds New Jersey license MA34734.
Does Dr. David J. Greifinger accept Medicare?
Yes. CMS data shows Dr. Greifinger billed Medicare for 36 services in 2024, and Dr. Greifinger accepts Medicare assignment.
How many Medicare patients does Dr. David J. Greifinger see?
CMS counts 26 Medicare patients who saw Dr. Greifinger in 2024, with an average age of 76.
What services does Dr. David J. Greifinger bill to Medicare?
In 2024, Dr. Greifinger's most billed Medicare services were office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. David J. Greifinger go to medical school?
Dr. Greifinger graduated from University of Maryland School of Medicine in 1973.
What drugs does Dr. David J. Greifinger prescribe most?
In 2018 Medicare Part D data, Dr. Greifinger's most prescribed drugs by claims were Meloxicam.
How long has Dr. David J. Greifinger been practicing?
Dr. Greifinger graduated from medical school in 1973, 53 years ago.
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