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Edit this profileAt a glance
- 3816 Woodruff Ave, Ste # 307, Long Beach, CA 90808
About Dr. Dobalian
Derek M. Dobalian, MD practices gastroenterology in Long Beach, CA. Derek is a 1981 graduate of Loma Linda University School of Medicine. According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1235225467.
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
- (562) 420-7670
- Email not available
Practice Locations
3816 WOODRUFF AVE STE # 307
Long Beach, CA 90808
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
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
42 services · 22 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| 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 | 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.
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 Long Beach 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Loma Linda University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Dobalian specialize in?
Dr. Dobalian is a gastroenterologist in Long Beach, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Dobalian located?
Dr. Dobalian is listed at 3816 Woodruff Ave Ste # 307, Long Beach, CA 90808. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Dobalian's phone number?
The number on file is (562) 420-7670. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Dobalian?
Dr. Dobalian's National Provider Identifier is 1235225467. 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. Dobalian go to medical school?
Dr. Dobalian attended Loma Linda University School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Dobalian have?
Dr. Dobalian has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Dobalian do most often?
According to Medicare billing data, Dr. Dobalian 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 Dr. Dobalian's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dobalian. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.