Tat S Lam, MD - Medicare Family Practice in Orange, CA

Tat S Lam, MD is a medicare enrolled "Family Medicine" physician in Orange, California. He went to University Of Southern California Keck School Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Providence Medical Foundation and his current practice location is 2501 E Chapman Ave Ste 204, Orange, California. You can reach out to his office (for appointments etc.) via phone at (714) 628-3230.

Tat S Lam is licensed to practice in California (license number A62418) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1134288749.

Contact Information

Tat S Lam, MD
2501 E Chapman Ave Ste 204,
Orange, CA 92869-3204
(714) 628-3230
Not Available



Physician's Profile

Full NameTat S Lam
GenderMale
SpecialityFamily Practice
Experience29 Years
Location2501 E Chapman Ave Ste 204, Orange, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Tat S Lam attended and graduated from University Of Southern California Keck School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1134288749
  • Provider Enumeration Date: 12/08/2006
  • Last Update Date: 04/01/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8123214426
  • Enrollment ID: I20101129000908

Medical Identifiers

Medical identifiers for Tat S Lam such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134288749NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A62418 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Medical Foundation89219932051293

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Tat S Lam allows following entities to bill medicare on his behalf.
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Tat S Lam is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Tat S Lam, MD
200 W Center Street Promenade Ste 300,
Anaheim, CA 92805-3960

Ph: (714) 449-4841
Tat S Lam, MD
2501 E Chapman Ave Ste 204,
Orange, CA 92869-3204

Ph: (714) 628-3230

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Family Medicine Doctors in Orange, CA

Catherine Cummins, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: Uci Medical Center, 101 The City Drive South, Orange, CA 92868
Phone: 714-456-8978    
Rolf D. Knapp, D.O
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Medicare: Accepting Medicare Assignments
Practice Location: 2540n Santiago Blvd, Orange, CA 92867
Phone: 714-921-1030    Fax: 714-921-1032
Dr. John Mark Geiss, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2592 N Santiago Blvd, Orange, CA 92867
Phone: 714-577-2271    Fax: 949-981-5550
Dr. Heather Dehaan, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-740-7956    
Dr. Lawrence Roger Brownlee, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2617 E. Chapman Ave., Suite 306, Orange, CA 92869
Phone: 714-669-4442    
Hal S Shimazu, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 845 E Chapman Ave, Orange, CA 92866
Phone: 714-997-2899    Fax: 714-289-7062
Shiho I Ito, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-8888    

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