Physician Profile
Guillermo E. Ferrer, MD
Unclaimed ProfileAbout Dr. Ferrer
Based in Ithaca, NY, Guillermo E. Ferrer, MD is listed in the NPI registry under general surgery. Guillermo is also listed as specializing in surgery. Medicare claims data shows Guillermo provided 624 services to 427 patients.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (607) 257-2116
- Email not available
Practice Locations
8 BRENTWOOD DRIVE SUITE A
Ithaca, NY 14850
Conditions Commonly Evaluated or Treated
Within General Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Appendicitis
- Breast cancer
- Gallstones
- Hernia
- Thyroid nodules
Anorectal
- Anal Fissure
- Anal Fistula
- Hemorrhoids
- Perianal Abscess
- Rectal Prolapse
Appendix, bowel, and emergency
- Abdominal Abscess
- Diverticulitis
- Intestinal Blood Clot
- Peritonitis
Gallbladder and biliary
- Gallbladder Dysfunction
- Gallbladder Infection
Hernia and abdominal wall
- Femoral Hernia
- Hiatal Hernia
- Incisional Hernia
- Inguinal Hernia
- Umbilical Hernia
- Ventral Hernia
Skin and soft tissue
- Hidradenitis Suppurativa
- Lipoma
- Skin Abscess
- Skin Cyst
- Soft Tissue Mass
Breast
- Breast Abscess
- Breast Lump
- Enlarged Male Breasts
Colorectal
- Pilonidal cyst
Endocrine
- Adrenal gland tumor
- Overactive Parathyroid
- Thyroid Cancer
Gastrointestinal
- Bowel obstruction
Oncology
- Colon cancer
Procedures & services
Most searched procedures
- Appendectomy
- Breast biopsy
- Gallbladder surgery
- Hernia repair surgery
- Lumpectomy
Bowel and emergency abdominal
- Abdominal Abscess Drainage
- Bowel Blockage Surgery
- Colon Resection
- Exploratory Abdominal Surgery
- Perforated Ulcer Repair
- Scar Tissue Removal Surgery
- Small Bowel Resection
Skin and soft tissue
- Abscess Drainage
- Lipoma Removal
- Soft Tissue Mass Excision
Access and nutrition
- J-Tube Placement
Anorectal
- Anal Fissure Surgery
- Anal Fistula Surgery
- Hemorrhoid Banding
- Hemorrhoid Removal
- Perianal Abscess Drainage
Breast Surgery
- Male Breast Reduction
Breast surgery
- Mastectomy
- Sentinel Lymph Node Biopsy
- Underarm Lymph Node Removal
Colorectal
- Pilonidal cyst surgery
- Rectal prolapse repair
Gastrointestinal
- Feeding tube placement
Skin & Soft Tissue
- Cyst Removal
Surgical Oncology
- Complex skin lesion excision
Vascular Access
- Central line placement
- Chemo port placement
Procedures Most Often Billed to Medicare
624 services · 427 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of chemical agent into multiple incompetent veins of leg | Procedure | 36471 |
58 |
| Application of vein wound compression bandages on lower leg, ankle, and foot | Procedure | 29581 |
26 |
| Chemical destruction of first incompetent vein of arm or leg using imaging guidance | Procedure | 36482 |
15 |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
12 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
148 |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
28 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
152 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
60 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
55 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
48 |
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.
Other general surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
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 general surgeons in Ithaca 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of chemical agent into multiple incompetent veins of leg 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Dr. Ferrer specialize in?
Dr. Ferrer is a general surgeon in Ithaca, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where is Dr. Ferrer located?
Dr. Ferrer is listed at 8 BRENTWOOD DRIVE SUITE A, Ithaca, NY 14850. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ferrer's phone number?
The number on file is (607) 257-2116. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ferrer?
Dr. Ferrer's National Provider Identifier is 1659470557. 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
Where did Dr. Ferrer go to medical school?
Dr. Ferrer attended Other, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ferrer have?
Dr. Ferrer has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ferrer do most often?
According to Medicare billing data, Dr. Ferrer performs procedures including injection of chemical agent into multiple incompetent veins of leg, application of vein wound compression bandages on lower leg, ankle, and foot and chemical destruction of first incompetent vein of arm or leg using imaging guidance; reads or performs imaging such as limited ultrasound scan of 1 breast; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound study of arm or leg veins with compression and maneuvers, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Ferrer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ferrer. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.