Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Ermenegildo E. Frezza, MD

Individual provider Surgery Physician · NPI 1083698435

Dr. Ermenegildo E. Frezza, MD practises General Surgery in Roswell, New Mexico. Qualified in 1989, 37 years ago. Practices with American Specialty Physicians Group Inc, a 92-clinician group and accepts Medicare assignment. Licensed in New Mexico and Texas.

Years since qualifying
37
Licensed in
NM, TX
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

311 W Country Club Rd Ste 1
Roswell, NM 88201-5839
Phone: (575) 625-3400
Fax: (575) 625-3415
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD2006-0035 (NM)
Surgery Physician Taxonomy 208600000X · Licence M1684 (TX)

Record details

NPI number1083698435
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 30, 2005
Last updated in NPPESJanuary 5, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Also practisesEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice American Specialty Physicians Group Inc — 92 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times
Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients62
Services billed 72 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at American Specialty Physicians Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 92 clinicians in the practice; 12 are shown here.

Other providers in Roswell