Are you John Isaac, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileWhere to find John Isaac, M.D.
- Warwick location main office
390 Toll Gate Rd, Ste.200, Warwick, RI 02886 - Abingdon location
16000 Johnston Memorial Dr Ste 101, Abingdon, VA 24211 - Gloucester location
7554 Hospital Dr # D-303, Gloucester, VA 23061 - Nashua location
168 Kinsley St, Nashua, NH 03060
About Dr. Isaac
John Isaac, M.D. practices general surgery in Warwick, RI. John is also listed as specializing in vascular surgery and surgery. According to Medicare claims data, the services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. The provider's National Provider Identifier (NPI) is 1225037435.
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
- (401) 739-8010
- Email not available
Practice Locations
390 TOLL GATE RD STE.200
Warwick, RI 02886
16000 Johnston Memorial Dr Ste 101
Abingdon, VA 24211
7554 Hospital Dr # D-303
Gloucester, VA 23061
168 Kinsley St
Nashua, NH 03060
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
Anorectal
Appendix, bowel, and emergency
Gallbladder and biliary
Hernia and abdominal wall
Skin and soft tissue
Abdominal
Abdominal wall
Breast
Colorectal
Digestive
- Acid reflux
- Acute pancreatitis
- Bleeding Stomach Ulcer
- Bowel Fistula
- Gastroparesis
- Swallowing difficulties
Emergency surgery
Endocrine
Gastrointestinal
Hernia
Infections
Lymphatic
Oncology
Procedures & services
Most searched procedures
Bowel and emergency abdominal
- Colon resection
- Exploratory laparoscopy
- Exploratory laparotomy
- Repair of perforated peptic ulcer
- Small-bowel resection
- Surgery for bowel obstruction
- Surgical drainage of abdominal abscess
- Surgical lysis of adhesions
Gallbladder and appendix
Hernia repair
Skin and soft tissue
Abdominal surgery
Abdominal wall
Access and nutrition
Anorectal
- Anal fistula surgery
- Drainage of anal abscess
- Hemorrhoid removal
- Rubber-band ligation of hemorrhoids
- Surgery for chronic anal fissure
Biopsy
Breast surgery
- Axillary lymph-node dissection
- Excisional biopsy of a breast mass
- Mastectomy
- Sentinel lymph-node biopsy
Breast Surgery
Colorectal
Colorectal surgery
Digestive procedures
Endocrine surgery
Gastrointestinal
Hernia surgery
Skin & Soft Tissue
Surgical Oncology
Surgical procedures
Vascular Access
Wound care
Procedures Most Often Billed to Medicare
13 services · 13 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 | Less often than most peers in General 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.
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 Warwick 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1984 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is John Isaac?
John Isaac is a general surgeon in Warwick, RI. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Surgery”.
NPI registry
What is John Isaac's address?
John Isaac is listed at 390 Toll Gate Rd Ste.200, Warwick, RI 02886. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Isaac?
The number on file is (401) 739-8010. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John Isaac?
John Isaac's National Provider Identifier is 1225037435. 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 John Isaac train?
John Isaac attended Other, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John Isaac have?
John Isaac has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What procedures does John Isaac perform?
According to Medicare billing data, John Isaac the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John Isaac's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John Isaac. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.