Physician Profile
Unclaimed ProfileAbout TROUM
Orrin M Troum, MD practices rheumatology in Santa Monica, CA. According to Medicare claims data, Orrin cared for 2,735 Medicare patients across 8,617 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (310) 449-1999
- Email not available
Practice Locations
2336 SANTA MONICA BLVD STE 207
Santa Monica, CA 90404
Procedures Most Often Billed to Medicare
8,617 services · 2,735 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
665 |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
223 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
89 |
| Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg | Drug given | J7318 |
2,160 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,320 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
841 |
| Hyaluronan or derivative, monovisc, for intra-articular injection, per dose | Drug given | J7327 |
75 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
1,433 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,196 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
382 |
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 rheumatology 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 rheumatology specialists in Santa Monica 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Troum specialize in?
Dr. Troum is a rheumatology in Santa Monica, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RHEUMATOLOGY”.
NPI registry
Where is Dr. Troum located?
Dr. Troum is listed at 2336 SANTA MONICA BLVD STE 207, Santa Monica, CA 90404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Troum's phone number?
The number on file is (310) 449-1999. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Troum's NPI number?
Dr. Troum's National Provider Identifier is 1821032608. 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. Troum go to medical school?
Dr. Troum attended Other, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Troum been practicing?
Dr. Troum has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Troum do most often?
According to Medicare billing data, Dr. Troum performs procedures including insertion of needle into vein for collection of blood sample and aspiration and/or injection of fluid from large joint; provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Troum confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Troum. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.