DR. REX DELL HARNER (M.D.) – Family Medicine Physician, NPI 1528066321

DR. REX DELL HARNER (M.D.) is a healthcare provider. based in Santa rosa, California. specializing in FAMILY PRACTICE. They hold the professional credentials M.D.. They hold a License No. G29415 (CA). The NPI Number for DR. REX DELL HARNER (M.D.) is 1528066321

Main info

Male
53 Years Of Experience
Accepts Medicare Assignment
Name
DR. REX DELL HARNER (M.D.)
NPI
1528066321
Phone
(707) 521-8809
Address
3883 AIRWAY DR
Enumeration Date
14 July 2005
Last Update Date
30 April 2008

Doctor Profile

Medical School Name
UNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Secondary Phone
-
Graduation Year
1973 (53 years ago)
PAC ID
7618075342
Group Practice PAC ID
4284538778
Professional Enrollment ID
I20070604000770
Address ID
CA954031671SA3883XDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

13,194 FAMILY PRACTICE in CA

Loading map...

Provider Addresses for DR. REX DELL HARNER (M.D.)

  • 3883, Airway Drive, Santa Rosa, Sonoma County, California, 95403, United States

    SANTA ROSA, CA 954031670

    Phone: (707) 521-8809

    Fax: (707) 521-8835

    Type: Mailing

  • 5300, Snyder Lane, Rohnert Park, Sonoma County, California, 95404, United States

    STE A

    ROHNERT PARK, CA 949282915

    Phone: (707) 585-8347

    Fax: (707) 585-8056

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2007-06-04

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070604000770IFamily PracticeCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes400228$0
99214Established patient office or other outpatient visit, 30-39 minutes175104$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit139139$0
G0008Administration of influenza virus vaccine3434$0
90694Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage3232$0
View full utilization report →

Insurance plans in this area (ZIP 95403)

Loading plans...

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284538778View full group profile
NameSpecialtyState
D E R M A T O L O G YCA
A L L E R G Y/ I M M U N O L O G YCA
-CA
Hospitalist, Obstetrics/GynecologyCA
O B S T E T R I C S/ G Y N E C O L O G YOR
-CA
-CA
-CA
-CA
A N E S T H E S I O L O G YCA

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

How is DR. REX DELL HARNER (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. REX DELL HARNER (M.D.) with NPI 1528066321.
Is DR. REX DELL HARNER (M.D.) still practicing?
DR. REX DELL HARNER (M.D.) is currently listed as active in the public NPI registry.
What taxonomy line describes DR. REX DELL HARNER (M.D.)?
For research purposes, treat DR. REX DELL HARNER (M.D.) as Family Medicine Physician in this dataset. Clinical services aligned with this taxonomy classification.
What address line appears for DR. REX DELL HARNER (M.D.)?
DR. REX DELL HARNER (M.D.)'s geographic hint is Santa Rosa, California in our summary view.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

Similar Providers

Unknown Individual

Family Medicine Physician
Summerfield Road, Santa Rosa, Sonoma County, California, 95405, United States
NPI: 1902809270

ALVIN I GORE (MD)

Family Medicine Physician
1165 MONTGOMERY DR # 1W20
NPI: 1326042821

Unknown Individual

Family Medicine Physician
Hoen Avenue, Santa Rosa, Sonoma County, California, 95405, United States
NPI: 1669477584

NORTHERN CALIFORNIA MEDICAL ASSOC INC

Internal Medicine Physician
Mendocino Avenue, Downtown Santa Rosa, Santa Rosa, Sonoma County, California, 95402, United States
NPI: 1093713778

JENNIFER L BETTS (MD)

Family Medicine Physician
144, Stony Point Road, Santa Rosa, Sonoma County, California, 95401, United States
NPI: 1518965771

NORTHERN CALIFORNIA MEDICAL ASSOC INC

Family Medicine Physician
3536, Mendocino Avenue, Santa Rosa, Sonoma County, California, 95401, United States
NPI: 1265431084

GARY LYNN MAES (M.D.)

Family Medicine Physician
3536, Mendocino Avenue, Santa Rosa, Sonoma County, California, 95401, United States
NPI: 1134127939

PATRICIA WHOOLEY KULAWIAK (MD)

Family Medicine Physician
1970, Bent Tree Place, Santa Rosa, Sonoma County, California, 95404, United States
NPI: 1487649711

BRUCE G HELLER (MD)

Family Medicine Physician
2220, Northpoint Parkway, Santa Rosa, Sonoma County, California, 95407, United States
NPI: 1932194123