Physician Profile
Unclaimed ProfileAbout LONGNECKER
Marshall A Longnecker, M.D. practices anesthesiology in Green Bay, WI. Marshall is a 1987 graduate of University of Chicago, Pritzker School of Medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (920) 433-3500
- Email not available
Practice Locations
744 S WEBSTER AVE
Green Bay, WI 54301
Procedures Most Often Billed to Medicare
11 services · 11 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for procedure for total knee joint replacement | Anaesthesia | 01402 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other anesthesiology specialists in Green Bay 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of Chicago, Pritzker School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for procedure for total knee joint replacement 8
Providers in WI who bill this service to Medicare most often.
Common questions
What is Dr. Longnecker's specialty?
Dr. Longnecker is an anesthesiology in Green Bay, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where can I find Dr. Longnecker?
Dr. Longnecker is listed at 744 S WEBSTER AVE, Green Bay, WI 54301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Longnecker?
The number on file is (920) 433-3500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Longnecker?
Dr. Longnecker's National Provider Identifier is 1225012743. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Longnecker's medical education?
Dr. Longnecker attended University of Chicago, Pritzker School of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Longnecker have?
Dr. Longnecker has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Longnecker known for?
According to Medicare billing data, Dr. Longnecker provides treatments such as anesthesia for procedure for total knee joint replacement. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Longnecker's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Longnecker. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.