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DR. JOHN W ADAMSON MD
NPI 1477504801
Internal Medicine - Hematology in San Diego, CA

Active since May 12, 2006PECOS EnrolledAccepts Medicare Assignment
8929 UNIVERSITY CENTER LN, SUITE 201, SAN DIEGO, CA 92122(858) 405-2272(858) 550-9032 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 12, 2025, Jun 3, 2019, Feb 6, 2017 (3 updates tracked since 2017).

About Dr. John W Adamson Md NPPES

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

DR. JOHN W ADAMSON MD (NPI 1477504801) is an individual hematology provider in San Diego, California, licensed in California (A20742) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1962).

NPPES Registry Identity

NPI1477504801
Entity TypeIndividualMale
Primary Taxonomy207RH0000X
Provider Legal NameDR. JOHN W ADAMSONCredential: MD
Location Address8929 UNIVERSITY CENTER LN, SUITE 201San Diego, CA 92122-1006
Mailing AddressFile 53726Los Angeles, CA 90074-0001
Phone(858) 405-2272
Fax(858) 550-9032
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1962
Enumeration DateMay 12, 2006
Last NPPES UpdateNovember 12, 20253 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
✔ NPI 1477504801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0000X
License✔ Licensed in CA · A20742
Definition
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
8929 UNIVERSITY CENTER LN, San Diego, CA 92122
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Other Identifiers 2

Other007000215THumana
Medicaid32601800WI

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

Dr. John W Adamson 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 ID7214024744
PECOS Enrollment IDI20071031000405
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 5

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.

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.
49 services44 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
22 services22 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.
20 services19 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.
17 services17 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.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92122 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
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 20

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

JUAN R KOJIMA P.A.
Physician Assistant (Medical)
8929 UNIVERSITY CENTER LN, STE 202
SAN DIEGO, CA 92122
San Diego County (858) 412-3271
JAMES R VEVAINA MD PROFESSIONAL CORPORATION
Internal Medicine (Pulmonary Disease)
8929 UNIVERSITY CENTER LN, SUITE 100
SAN DIEGO, CA 92122
San Diego County (858) 581-0400
KATHLEEN GRACE RPT
Physical Therapist
8929 UNIVERSITY CENTER LN, 200
SAN DIEGO, CA 92122
San Diego County (858) 457-3545
MIDCOUNTY SURGICAL ASSOCIATES LP A CALIFORNIA LIMITED PARTNERSHIP
Clinic/Center (Ambulatory Surgical)
8929 UNIVERSITY CENTER LN, SUITE 103
SAN DIEGO, CA 92122
San Diego County (858) 544-0220
DAVID ESPOSITO
Massage Therapist
8929 UNIVERSITY CENTER LN, SUITE 200
SAN DIEGO, CA 92122
San Diego County (858) 457-3545
RON ALAN MACNUTT PA-C
Physician Assistant (Surgical)
8929 UNIVERSITY CENTER LN, SUITE 201
SAN DIEGO, CA 92122
San Diego County (858) 450-4199
DR. ISAAC BAKST MBBCH
Psychiatry & Neurology (Neurology)
8929 UNIVERSITY CENTER LN, 207
SAN DIEGO, CA 92122
San Diego County (858) 552-8828
NORTH COUNTY ORTHOPEDIC MEDICAL GROUP INC
Clinic/Center (Occupational Medicine)
8929 UNIVERSITY CENTER LN, #100
SAN DIEGO, CA 92122
San Diego County (858) 457-4040

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 John Adamson's NPI number?

The NPI number for John Adamson is 1477504801. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is John Adamson located?

John Adamson practices at 8929 University Center Ln Suite 201, San Diego, CA 92122. The listed phone number is (858) 405-2272.

What is John Adamson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Is John Adamson enrolled in Medicare?

Yes. John Adamson 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 John Adamson was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.