MARK E READER (D.O.) – Otolaryngology Physician, NPI 1649363334

MARK E READER (D.O.) is a healthcare provider. based in Porterville, California. specializing in OTOLARYNGOLOGY. They hold the professional credentials D.O.. They hold a License No. 20A8888 (CA). The NPI Number for MARK E READER (D.O.) is 1649363334

Main info

Male
Sole Proprietor
39 Years Of Experience
Accepts Medicare Assignment
Name
MARK E READER (D.O.)
NPI
1649363334
Phone
(559) 781-3700
Address
390 Pearson Dr
Enumeration Date
2 October 2006
Last Update Date
12 November 2025

Doctor Profile

Medical School Name
AT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Secondary Phone
5593594415
Graduation Year
1987 (39 years ago)
PAC ID
7416986369
Group Practice PAC ID
7911319645
Professional Enrollment ID
I20050810001011
Address ID
CA932573270PO585XXAVEX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience67
Completeness85
Years active:19State licenses:1Digital endpointsOther names

1,365 OTOLARYNGOLOGY in CA

Provider Addresses for MARK E READER (D.O.)

  • 390 Pearson Dr

    Porterville, CA 932573368

    Phone: (559) 781-3700

    Type: Location

  • 390, North Pearson Drive, Porterville, Tulare County, California, 93257, United States

    PORTERVILLE, CA 93257

    Phone: (559) 791-1779

    Fax: (559) 791-9353

    Type: Location

  • 590 W PUTNAM AVE

    PORTERVILLE, CA 932573257

    Phone: (559) 781-3700

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 7 Open Payments records for all available years, with a total value of $419.

Total Amount is formed as General ($419) + Research ($0) + Ownership ($0) = $419.

Last reported payment date: 2024-05-12 • Largest payer in this snapshot: Medtronic, Inc. ($167).

Total Amount

$419

General + Research + Ownership

Payments

7

Total payment records

General Amount

$419

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-05-12

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

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: 2005-08-10

PECOS data refreshed: 2026-06-15

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
I20050810001011IOtolaryngologyCATBD

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 minutes459337$0
99203New patient office or other outpatient visit, 30-44 minutes442442$0
99212Established patient office or other outpatient visit, 10-19 minutes425348$0
69210Removal of impacted ear wax336260$0
99202New patient office or other outpatient visit, 15-29 minutes124124$0
View full utilization report →

Insurance plans in this area (ZIP 93257)

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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: 7911319645View full group profile
NameSpecialtyState
Nurse PractitionerMI
Internal MedicineCA
Family PracticeCA
Nurse PractitionerCA
Physician AssistantCA
Physician AssistantCA
Nurse PractitionerCA
Family PracticeCA
Family Practice, Internal MedicineCA
Physician AssistantCA

Reviews

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Frequently asked questions

What unique ID ties claims to MARK E READER (D.O.)?
NPI 1649363334 is assigned to MARK E READER (D.O.) under the national enumeration system.
Is MARK E READER (D.O.)'s NPI currently valid?
The extract we use shows MARK E READER (D.O.) as active.
What field does MARK E READER (D.O.) work in?
You can think of MARK E READER (D.O.) as practicing within Otolaryngology Physician. Clinical services aligned with this taxonomy classification.
What location metadata exists for MARK E READER (D.O.)?
The page summarizes Porterville, California for MARK E READER (D.O.); expand the address list for detail.
What if Porterville, California seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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