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Edit this profileAt a glance
- 7000 Boulder Ave, Highland, CA 92346
About Dr. Zhen
Based in Highland, CA, Lida Zhen, M.D. is listed in the NPI registry under gastroenterology. Medicare claims data shows Lida provided 356 services to 86 patients. The services billed most often include injection, midazolam hydrochloride, per 1 mg, injection, fentanyl citrate, 0.1 mg, and colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk. NPI 1942256581 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
- (909) 862-1191
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
7000 BOULDER AVE
Highland, CA 92346
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
Chronic conditions
Liver health
Specialized and cancer
- Short bowel syndrome
Wound care
- Feeding Tube Site Irritation
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
Digestive Symptoms
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Advanced endoscopy
- EUS-guided biopsy
Biliary and pancreatic endoscopy
- Biliary sphincterotomy
- Endoscopic bile duct stone removal
Capsule and physiology testing
- Ambulatory reflux monitoring
- Capsule endoscopy
- Hydrogen and methane breath testing
- Anorectal manometry
- Esophageal manometry
Chronic illness
- Feeding tube care and troubleshooting
Clinical Nutrition
Diagnostic Testing
- 24-Hour Acid Reflux Test
- H. Pylori Breath Test
- SIBO Breath Test
- EUS-Guided Fine Needle Biopsy
Digestive
- Bowel Retraining Program
General surgery
- Hemorrhoid banding and treatment
Infection & Microbiology Tests
Liver procedures
- Paracentesis
- Esophageal variceal banding
- Liver elastography
Lower endoscopy
- Colon polyp removal
- Diagnostic colonoscopy
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Nursing care
- G-Tube Button Replacement
Nutrition & Digestion
- Feeding tube placement
Upper endoscopy
- Endoscopic mucosal resection
- Esophageal biopsy
- Esophageal dilation
- Stomach biopsy
- Endoscopic submucosal dissection
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
356 services · 86 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection, midazolam hydrochloride, per 1 mg | Drug given | J2250 |
299 | More often than most peers in Gastroenterology |
| Injection, fentanyl citrate, 0.1 mg | Drug given | J3010 |
34 | As often as other peers in Gastroenterology |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
12 | Less often than most peers in Gastroenterology |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
11 | Less 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.
Other gastroenterologists at this location 2
Same specialty, same street address — most likely the same department or group.
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 — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1982 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Lida Zhen specialize in?
Lida Zhen is a gastroenterologist in Highland, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Lida Zhen located?
Lida Zhen is listed at 7000 Boulder Ave, Highland, CA 92346. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Lida Zhen's phone number?
The number on file is (909) 862-1191. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Lida Zhen?
Lida Zhen's National Provider Identifier is 1942256581. 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 Lida Zhen train?
Lida Zhen attended Other, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Lida Zhen have?
Lida Zhen has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does Lida Zhen do most often?
According to Medicare billing data, Lida Zhen 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 Lida Zhen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Lida Zhen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.