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
Family Medicine in Santa Maria, CA

Active since January 08, 2007PECOS Enrolled
1505 SHEPARD DR STE 204, SANTA MARIA, CA 93454(805) 912-1777(805) 902-7570 Get Directions Write a Review

NPPES record last updated: October 29, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 29, 2026, Aug 25, 2026 (2 updates tracked since 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 family medicine 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 Taxonomy207Q00000X
Provider Legal NameWILLIAM ALLEN OKERBLOMCredential: M.D.
Location Address1505 SHEPARD DR STE 204Santa Maria, CA 93454-7016
Mailing Address1505 Shepard Dr Ste 204Santa Maria, CA 93454-7016 · (805) 478-6570 · Fax (866) 317-4919
Fax(805) 902-7570
Sole ProprietorYes
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1981
Enumeration DateJanuary 8, 2007
Last NPPES UpdateOctober 29, 20262 updates tracked since enumeration
NPPES CertifiedOctober 29, 2026
✔ NPI 1396893046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · G49571
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedDermatologyTaxonomy 207N00000X · License G49571 (CA)
1505 SHEPARD DR STE 204, Santa Maria, CA 93454

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

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.

Medicare Billing Reassignments

2

Medicare enrollment records show William Okerblom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
1505 SHEPARD DR STE 104
Santa Maria, CA 93454
  • Reassigned Medicare billing, California enrollment
  • 19 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
5580 CALLE REAL
Goleta, CA 93111
  • Reassigned Medicare billing, California enrollment
  • 42 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93454 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
$108.26 typical visit price
range $20.60 – $151.20
Typical copayment $27.06 (range $5.15 – $37.80)
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.

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.

Other Providers at the Same Location NPPES 4

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

Dietitian, Registered
1505 SHEPARD DR STE 204
SANTA MARIA, CA 93454
Dietitian, Registered
1505 SHEPARD DR STE 204
SANTA MARIA, CA 93454
Dermatology
1505 SHEPARD DR STE 204
SANTA MARIA, CA 93454
Clinic/Center (Mental Health (Including Community Mental Health Center))
1505 SHEPARD DR STE 204
SANTA MARIA, CA 93454

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 1505 Shepard Dr Ste 204, Santa Maria, CA 93454. The listed phone number is (805) 912-1777.

What is William Okerblom's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

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.

Which organizations bill Medicare for William Okerblom's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Okerblom reassigns Medicare benefits to 2 organizations: Central Coast Family Care Medical Associates, Inc (Santa Maria, CA) and Santa Barbara Neighborhood Clinics (Goleta, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Okerblom's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Okerblom was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.