Physician Profile
Mark D. Gulinson, MD
Unclaimed ProfileAbout Dr. Gulinson
Based in Phoenix, AZ, Mark D. Gulinson, MD is listed in the NPI registry under gastroenterology. Mark graduated from University of Colorado School of Medicine, Denver in 1990. Mark is also listed as specializing in specialist. According to Medicare claims data, Mark cared for 1,281 Medicare patients across 1,374 services. 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, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and biopsy of large bowel using a flexible endoscope.
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
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (623) 279-3575
- Email not available
Practice Locations
9250 N 3RD ST STE 4035
Phoenix, AZ 85020
Conditions Commonly Evaluated or Treated
Within Gastroenterology 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
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
1,374 services · 1,281 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
149 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
128 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
96 |
| Insertion of guide wire with dilation of esophagus using a flexible endoscope | Procedure | 43248 |
66 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
25 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
332 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
169 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
117 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
94 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
92 |
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 1
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 gastroenterologists in Phoenix 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Colorado School of Medicine, Denver 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at University of Colorado School of Medicine, Denver 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Gulinson?
Dr. Gulinson is a gastroenterologist in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Dr. Gulinson's address?
Dr. Gulinson is listed at 9250 N 3Rd St Ste 4035, Phoenix, AZ 85020. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Gulinson?
The number on file is (623) 279-3575. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Gulinson's NPI number?
Dr. Gulinson's National Provider Identifier is 1881698264. 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. Gulinson train?
Dr. Gulinson attended University of Colorado School of Medicine, Denver, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Gulinson been practicing?
Dr. Gulinson has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Gulinson perform?
According to Medicare billing data, Dr. Gulinson performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Gulinson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gulinson. 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.