Physician Profile
Unclaimed ProfileAbout LAH
John J. Lah, MD is a healthcare provider in Whittier, CA specialising in gastroenterology. John trained at New York Medical College, graduating in 2000.
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
Areas of Expertise
Common questions
What does Dr. Lah specialise in?
Dr. Lah is a gastroenterology in Whittier, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Lah located?
Dr. Lah is listed at 15141 WHITTIER BLVD SUITE #260, Whittier, CA 90603. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lah's phone number?
The number on file is (562) 698-0306. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Lah's NPI number?
Dr. Lah's National Provider Identifier is 1437221272. 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. Lah go to medical school?
Dr. Lah attended New York Medical College, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lah been practising?
Dr. Lah has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lah do most often?
According to Medicare billing data, Dr. Lah performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of large 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. Lah confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lah. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (562) 698-0306
- Email not available
Practice Locations
15141 WHITTIER BLVD SUITE #260
Whittier, CA 90603
Procedures Most Often Billed to Medicare
374 services · 338 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
46 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
29 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
24 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
113 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
71 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
50 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
29 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated 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 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.
Other gastroenterology specialists in Whittier 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.