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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM ALLEN OKERBLOM M.D.
NPI 1396893046
Dermatology in Santa Maria, CA

Active since January 08, 2007PECOS Enrolled
1103 DEVONSHIRE PL, SANTA MARIA, CA 93455(805) 478-6570(866) 317-4919 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About William Allen Okerblom M.d. NPPES

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

WILLIAM ALLEN OKERBLOM M.D. (NPI 1396893046) is an individual dermatology provider in Santa Maria, California, licensed in California (G49571) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1981).

NPPES Registry Identity

NPI1396893046
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameWILLIAM ALLEN OKERBLOMCredential: M.D.
Location Address1103 DEVONSHIRE PLSanta Maria, CA 93455-3444
Mailing Address1103 Devonshire PlSanta Maria, CA 93455-3444 · (805) 478-6570 · Fax (866) 317-4919
Phone(805) 478-6570
Fax(866) 317-4919
Sole ProprietorYes
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1981
Enumeration DateJanuary 8, 2007
Last NPPES UpdateAugust 25, 2026
NPPES CertifiedAugust 25, 2026
✔ NPI 1396893046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · G49571
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Also ListedFamily MedicineTaxonomy 207Q00000X · License G49571 (CA)
1103 DEVONSHIRE PL, Santa Maria, CA 93455
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Other Identifiers 2

OtherGI162APtan
OtherP00465406CA · Medicare Railroad

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

William Allen Okerblom M.d. 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 ID5193765907
PECOS Enrollment IDI20050510001231
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93455 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
$94.71 typical visit price
range $62.01 – $184.40
Typical copayment $23.67 (range $15.50 – $46.10)
Most-billed visit code 99203
Established Patient
$76.76 typical visit price
range $20.60 – $151.20
Typical copayment $19.19 (range $5.15 – $37.80)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims12 services$96.30 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 William Okerblom's NPI number?

The NPI number for William Okerblom is 1396893046. It was assigned to this individual provider in the NPPES registry on January 8, 2007.

Where is William Okerblom located?

William Okerblom practices at 1103 Devonshire Pl, Santa Maria, CA 93455. The listed phone number is (805) 478-6570.

What is William Okerblom's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is William Okerblom enrolled in Medicare?

Yes. William Okerblom 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 William Okerblom was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.