Physician Profile
Walter Gwang-Up Park, M.D.
Unclaimed ProfileAbout Dr. Park
Based in Stanford, CA, Walter Gwang-Up Park, M.D. is listed in the NPI registry under gastroenterology. Walter graduated from Johns Hopkins University School of Medicine in 2003. According to Medicare claims data, Walter cared for 484 Medicare patients across 498 services.
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
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
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
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
498 services · 484 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth | Procedure | 43237 |
108 |
| Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope | Procedure | 43238 |
79 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
59 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
19 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
77 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
42 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
39 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
21 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
16 |
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 gastroenterology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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.
More connections — 30 related providers in 4 groups
Other gastroenterology specialists in Stanford 7
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Johns Hopkins University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Park's specialty?
Dr. Park is a gastroenterology in Stanford, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Park?
Dr. Park is listed at 300 PASTEUR DR, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Park?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Park's NPI number?
Dr. Park's National Provider Identifier is 1538355672. 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
What is Dr. Park's medical education?
Dr. Park attended Johns Hopkins University School of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Park been practicing?
Dr. Park has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Park known for?
According to Medicare billing data, Dr. Park performs procedures including ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth, ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Park confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Park. 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.