Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gregory Lee Thalken, MD

Individual provider Diagnostic Radiology Physician · NPI 1861547317

Dr. Gregory Lee Thalken, MD is a Diagnostic Radiology in Long Beach, California. Qualified in 2006, 20 years ago. Practices with Fullerton Radiology Medical Group Inc, a 55-clinician group, works from 9 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2801 Atlantic Ave
Long Beach, CA 90806-1701
Phone: (562) 933-1550
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (8)

  • 4301 W Markham St # 556, Little Rock, AR 72205-7101 — (501) 296-1095
  • 4440 W 95th St, Oak Lawn, IL 60453-2600 — (708) 684-8000
  • 6125 Ranier Ln N, Plymouth, MN 55446-2072 — (858) 546-3800
  • 1 Capital Way, Pennington, NJ 08534-2520 — (609) 303-4000
  • 310 Salem Woodstown Rd, Salem, NJ 08079-2064 — (856) 935-1000
  • 750 Brunswick Ave, Trenton, NJ 08638-4143 — (609) 394-6000
  • 500 Martha Jefferson Dr, Charlottesville, VA 22911-4668 — (434) 654-7000
  • 2010 Health Campus Dr, Rockingham, VA 22801-8679 — (540) 432-8950

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence C162624 (CA)

Record details

NPI number1861547317
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 24, 2007
Last updated in NPPESMay 6, 2026
Certification dateMay 6, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Fullerton Radiology Medical Group Inc — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations44 on file with Medicare

Other providers in Long Beach