Physician Profile
Jaesoo Pak, M.D.
Unclaimed ProfileAbout Dr. Pak
Jaesoo Pak, M.D. practices gastroenterology in Cerritos, CA. Jaesoo is a 1992 graduate of George Washington University School of Medicine. According to Medicare claims data, Jaesoo cared for 4,313 Medicare patients across 10,575 services. The services billed most often include chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month, injection, denosumab, 1 mg, and injection, ketorolac tromethamine, per 15 mg.
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.
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
- (562) 809-8082
- Email not available
Practice Locations
11841 SOUTH ST
Cerritos, CA 90703
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
- Acute pancreatitis
- Gallstones
- Pancreatic cysts
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon cancer
- Colon polyps
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic diarrhea
- Fecal incontinence
- Small intestinal bacterial overgrowth
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Bowel & Colon
- Diverticulitis
Digestive Symptoms
- Constipation
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Lower endoscopy
- Colon polyp removal
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Upper endoscopy
- Endoscopic submucosal dissection
- Esophageal dilation
Capsule and physiology testing
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
Diagnostic Testing
- 24-Hour Acid Reflux Test
- EUS-Guided Fine Needle Biopsy
- H. Pylori Breath Test
- SIBO Breath Test
Liver procedures
- Esophageal variceal banding
- Liver elastography
- Paracentesis
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
10,575 services · 4,313 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43252 |
337 | More than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
332 | More than most peers in Gastroenterology |
| X-ray of chest, 2 views | Imaging | 71046 |
272 | Too few peers to compare |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
164 | Too few peers to compare |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
160 | More than most peers in Gastroenterology |
| Complete ultrasound scan of pelvis | Imaging | 76856 |
93 | Too few peers to compare |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
367 | More than most peers in Gastroenterology |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
159 | Too few peers to compare |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
138 | Too few peers to compare |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
92 | More often than most peers in Gastroenterology |
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.
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1992 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Jaesoo Pak specialize in?
Jaesoo Pak is a gastroenterologist in Cerritos, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Jaesoo Pak located?
Jaesoo Pak is listed at 11841 South St, Cerritos, CA 90703. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Jaesoo Pak's phone number?
The number on file is (562) 809-8082. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Jaesoo Pak's NPI number?
Jaesoo Pak's National Provider Identifier is 1023124054. 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 Jaesoo Pak train?
Jaesoo Pak attended George Washington University School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Jaesoo Pak been practicing?
Jaesoo Pak has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Jaesoo Pak do most often?
According to Medicare billing data, Jaesoo Pak performs procedures including microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; reads or performs imaging such as x-ray of chest, 2 views and ultrasound scan of head and neck soft tissue; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and ultrasound of both sides of head and neck blood flow, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jaesoo Pak confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jaesoo Pak. 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.