Physician Profile
Unclaimed ProfileAbout LEFFERMAN
Based in Los Angeles, CA, Matthew Greg Lefferman, DO is listed in the NPI registry under internal medicine. Medicare claims data shows Matthew provided 37,856 services to 13,603 patients.
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) 356-8146
- Email not available
Practice Locations
9233 W. PICO BLVD. SUITE #230
Los Angeles, CA 90035
Procedures Most Often Billed to Medicare
37,856 services · 13,603 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test or measurement for functional capacity, each 15 minutes | Treatment | 97750 |
512 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
8,611 |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99439 |
6,166 |
| Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99350 |
3,821 |
| Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99349 |
3,338 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
2,236 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
1,667 |
| Advance care planning, first 30 minutes | Office visit | 99497 |
1,066 |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
947 |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
913 |
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 7
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 internal medicines in Los Angeles 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Test or measurement for functional capacity, each 15 minutes 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Lefferman's specialty?
Dr. Lefferman is an internal medicine in Los Angeles, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Lefferman?
Dr. Lefferman is listed at 9233 W. PICO BLVD. SUITE #230, Los Angeles, CA 90035. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lefferman?
The number on file is (310) 356-8146. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Lefferman?
Dr. Lefferman's National Provider Identifier is 1184622417. 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
What is Dr. Lefferman's medical education?
Dr. Lefferman attended Other, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lefferman have?
Dr. Lefferman has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lefferman known for?
According to Medicare billing data, Dr. Lefferman provides treatments such as test or measurement for functional capacity, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lefferman's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lefferman. 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.