Physician Profile
Unclaimed ProfileAbout HARMON
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Areas of Expertise
Common questions
What kind of doctor is Dr. Harmon?
Dr. Harmon is a gastroenterologist in Harbor City, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Gastroenterology”.
NPI registry
What is Dr. Harmon's address?
Dr. Harmon is listed at 25825 VERMONT AVE, Harbor City, CA 90710. 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. Harmon?
The number on file is (310) 325-5111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Harmon's NPI number?
Dr. Harmon's National Provider Identifier is 1346347028. 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
How long has Dr. Harmon been practising?
Dr. Harmon has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
What procedures does Dr. Harmon perform?
According to Medicare billing data, Dr. Harmon performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare 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. Harmon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Harmon. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (310) 325-5111
- Email not available
Practice Locations
25825 VERMONT AVE
Harbor City, CA 90710
Procedures Most Often Billed to Medicare
675 services · 620 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
91 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
80 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
72 |
| Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | Procedure | 43251 |
22 |
| Removal of large bowel tissue using a flexible endoscope | Procedure | 45390 |
12 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
211 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
52 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
43 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
15 |
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.
Related specialists at this location 3
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 Harbor City 3
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Biopsy of large 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.