Allen Houshiar, DO, MS
NPI 1427076272 · Family Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Houshiar, DO, MS is a Family Medicine Physician provider in Orange, CA (NPI 1427076272).
Provider details
- NPI number
- 1427076272
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO, MS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8021 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
750 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 306 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $194 |
| X-Ray of Chest, 2 Views71046 | 50 | $29 |
| Urinalysis, Manual Test81002 | 40 | $3 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 37 | $179 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 212 | 207 |
| Azithromycin | 176 | 171 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 151 | 146 |
| Cefdinir | 133 | 130 |
| Cephalexin | 116 | 116 |
| Prednisone | 104 | 101 |
| Mupirocin | 103 | 102 |
| Ciprofloxacin Hcl | 67 |
Practice location
Mailing address
Additional practice locations (2)
- 2251 N Harbor BlvdFullerton, CA 92835-2601Phone: (714) 449-6230
- 32 VintageIrvine, CA 92620-3409Phone: (714) 878-4812
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2020-10-21
- Certified
- 2020-10-21
Frequently asked questions
- What is Allen Houshiar's NPI number?
- Allen Houshiar's National Provider Identifier (NPI) is 1427076272, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Houshiar's specialty?
- Allen Houshiar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Houshiar located?
- Allen Houshiar's practice location on file with NPPES is 2501 E Chapman Ave, Orange, CA 92869-3204.
- What is Allen Houshiar's phone number?
- The practice phone number listed in the NPPES registry for Allen Houshiar is (714) 628-3300.
- Does Allen Houshiar accept Medicare?
- Allen Houshiar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Houshiar's NPI active?
- Yes — Allen Houshiar's NPI (1427076272) is active in the NPPES registry as of the last update on 2020-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.