Mark Reader, D.O.
NPI 1649363334 · Otolaryngology Physician · Porterville, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Reader, D.O. is a Otolaryngology Physician provider in Porterville, CA (NPI 1649363334).
Provider details
- NPI number
- 1649363334
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8888 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,926 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 480 | $59 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 402 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 359 | $94 |
| Removal of Impacted Ear Wax69210 | 340 | $49 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 127 | $75 |
| Exam of Ear Using a Microscope92504 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 128 | 57 |
| Azelastine Hcl | 101 | 43 |
| Ipratropium Bromide | 80 | 36 |
| Ofloxacin | 44 | 30 |
| Cephalexin | 43 | 39 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 34 | 33 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 30 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$129 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 390 Pearson DrPorterville, CA 93257-3368Phone: (559) 781-3700
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2025-11-12
- Certified
- 2025-11-12
Frequently asked questions
- What is Mark Reader's NPI number?
- Mark Reader's National Provider Identifier (NPI) is 1649363334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Reader's specialty?
- Mark Reader is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Reader located?
- Mark Reader's practice location on file with NPPES is 590 W Putnam Ave, Porterville, CA 93257-3257.
- What is Mark Reader's phone number?
- The practice phone number listed in the NPPES registry for Mark Reader is (559) 781-3700.
- Does Mark Reader accept Medicare?
- Mark Reader is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Reader's NPI active?
- Yes — Mark Reader's NPI (1649363334) is active in the NPPES registry as of the last update on 2025-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.