ORRIN M TROUM MD
NPI 1821032608
Internal Medicine - Rheumatology in Santa Monica, CA

Q: What is Orrin Troum's NPI number?

The NPI number for Orrin Troum is 1821032608. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Q: What is Orrin Troum's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Orrin Troum was last updated on April 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 15, 2006PECOS EnrolledAccepts Medicare Assignment

2336 SANTA MONICA BLVD STE 207, SANTA MONICA, CA 90404(310) 449-1999(310) 453-8533 Get Directions Write a Review

NPPES record last updated: April 20, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 20, 2021, Aug 12, 2020, Jan 9, 2019 (3 updates tracked since 2019).

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About Orrin M Troum Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ORRIN M TROUM MD (NPI 1821032608) is an individual rheumatology provider in Santa Monica, California, licensed in California (A37014) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1979).

NPPES Registry Identity

NPI1821032608

Entity TypeIndividualMale

Primary Taxonomy207RR0500X

Provider Legal NameORRIN M TROUMCredential: MD

Location Address2336 SANTA MONICA BLVD STE 207Santa Monica, CA 90404-2067

Mailing Address2336 Santa Monica Blvd, Ste 207Santa Monica, CA 90404-2095 · (310) 449-1999 · Fax (310) 449-1996

Phone(310) 449-1999

Fax(310) 453-8533

Sole ProprietorYes

Medical School CMSOtherGraduated 1979

Enumeration DateJune 15, 2006

Last NPPES UpdateApril 20, 20213 updates tracked since enumeration

NPPES CertifiedApril 20, 2021

✔ NPI 1821032608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in CA · A37014

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

2336 SANTA MONICA BLVD STE 207, Santa Monica, CA 90404

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Orrin M Troum Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2163420126

PECOS Enrollment IDI20061129000487

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg J7318

Hyaluronan or derivative, Durolane, is a treatment injected directly into the joint to relieve pain and improve mobility. It's often used for arthritis in the knee. The substance works by supplementing your body's natural joint fluid to help lubricate and cushion the joint.

2,160 services20 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,320 services15 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

1,196 services675 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

841 services110 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

665 services475 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

382 services280 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

223 services94 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

106 services106 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

89 services33 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

78 services78 patients

Hyaluronan or derivative, monovisc, for intra-articular injection, per dose J7327

Monovisc is a treatment involving an injection of hyaluronan or its derivative into a joint, often the knee. This substance, found naturally in joint fluid, helps lubricate and cushion the joint. The injection can help ease pain, improve mobility, and reduce inflammation caused by arthritis.

75 services40 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

25 services24 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

24 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMY SARGIOUS KEHL MD

Internal Medicine (Rheumatology)

2336 SANTA MONICA BLVD STE 207
SANTA MONICA, CA 90404

Los Angeles County (310) 449-1999

AMRO BALKI M.D.

Internal Medicine (Rheumatology)

2336 SANTA MONICA BLVD STE 207
SANTA MONICA, CA 90404

Los Angeles County (310) 449-1999

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Orrin Troum's NPI number?

The NPI number for Orrin Troum is 1821032608. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Where is Orrin Troum located?

Orrin Troum practices at 2336 Santa Monica Blvd Ste 207, Santa Monica, CA 90404. The listed phone number is (310) 449-1999.

What is Orrin Troum's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Orrin Troum enrolled in Medicare?

Yes. Orrin Troum is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Orrin Troum was last updated on April 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.