Robert Ziering, M.D.
NPI 1215933148 · Allergy & Immunology Physician · Vista, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Ziering, M.D. is a Allergy & Immunology Physician provider in Vista, CA (NPI 1215933148).
Provider details
- NPI number
- 1215933148
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A30813 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
13,712 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) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 6,321 | $15 |
| Test for Allergy Using Allergenic Extract95004 | 4,680 | $4 |
| Professional Service for Multiple Injections of Allergen95117 | 1,482 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 425 | $91 |
| Professional Service for Single Injection of Allergen95115 | 291 | $11 |
| Test to Measure Expiratory Airflow and Volume94010 | 237 | $28 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 345 | 135 |
| Montelukast Sodium | 173 | 48 |
| Ipratropium Bromide | 172 | 68 |
| Fluticasone Propionate | 134 | 48 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 123 | 55 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 80 | 19 |
| Fluticasone Propion/Salmeterolbrand: Advair Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,840 across 78 records (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
Registry dates
- Enumerated
- 2005-06-24
- Last updated
- 2009-03-04
Frequently asked questions
- What is Robert Ziering's NPI number?
- Robert Ziering's National Provider Identifier (NPI) is 1215933148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Ziering's specialty?
- Robert Ziering is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Ziering located?
- Robert Ziering's practice location on file with NPPES is 2067 W Vista Way, Vista, CA 92083-6032.
- What is Robert Ziering's phone number?
- The practice phone number listed in the NPPES registry for Robert Ziering is (760) 941-4444.
- Does Robert Ziering accept Medicare?
- Robert Ziering is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Ziering's NPI active?
- Yes — Robert Ziering's NPI (1215933148) is active in the NPPES registry as of the last update on 2009-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.