Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Matthew Thomas Long, DO

Individual provider Adult Medicine Physician · NPI 1851406243

Matthew Thomas Long, DO is registered under Family Practice in Long Beach, California. Qualified in 2000, 26 years ago. Practices with Healthcare Partners Affiliates Medical Group, a 790-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
26
Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2600 Redondo Ave
Long Beach, CA 90806-2325
Phone: (562) 988-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1919 S Catalina Ave, Redondo Beach, CA 90277-5515 — (310) 378-7246

Specialties & licences

Adult Medicine Physician (primary) Taxonomy 207QA0505X · Licence 2OA8553 (CA)

Record details

NPI number1851406243
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 19, 2006
Last updated in NPPESApril 30, 2026
Certification dateApril 30, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Healthcare Partners Affiliates Medical Group — 790 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients126
Services billed 393 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Healthcare Partners Affiliates Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 790 clinicians in the practice; 12 are shown here.

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