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Edit this profileAt a glance
- 8 Brentwood Drive, Suite A, Ithaca, NY 14850
About Dr. Ferrer
Based in Ithaca, NY, Guillermo E. Ferrer, MD is listed in the NPI registry under surgery. Medicare claims data shows Guillermo provided 624 services to 427 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, ultrasound study of one arm or leg veins with compression and maneuvers, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. NPI 1659470557 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (607) 257-2116
- Email not available
Practice Locations
8 BRENTWOOD DRIVE SUITE A
Ithaca, NY 14850
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) 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
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
Digestive
Digestive health
Endocrine
Infections
Minor surgery
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular
Vascular & cancer
Weight loss
Wound care
Wounds
Procedures Most Often Billed to Medicare
624 services · 427 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of chemical agent into multiple incompetent veins of leg | Procedure | 36471 |
58 | As often as other peers in Surgery |
| Application of vein wound compression bandages on lower leg, ankle, and foot | Procedure | 29581 |
26 | Less often than most peers in Surgery |
| Chemical destruction of first incompetent vein of arm or leg using imaging guidance | Procedure | 36482 |
15 | Less often than most peers in Surgery |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
12 | Less often than most peers in Surgery |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
148 | More often than most peers in Surgery |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
28 | Less often than most peers in Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
152 | More often than most peers in Surgery |
| 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 | More often than most peers in Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
55 | More often than most peers in Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
48 | More often than most peers in Surgery |
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 general surgeons in Ithaca 8
Same specialty, same city.
More connections — 21 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 5
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. That is the designation recorded for this NPI in the federal registry, where it is listed as “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. Contact the office directly to confirm availability and scheduling.
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.
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