George Schiffman, M.D.
NPI 1104803188 · Sleep Medicine (Internal Medicine) Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
George Schiffman, M.D. is a Sleep Medicine (Internal Medicine) Physician provider in Mission Viejo, CA (NPI 1104803188).
Provider details
- NPI number
- 1104803188
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G50558 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
764 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 151 | $217 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 111 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 75 | $123 |
| Home Sleep Test (hst) With Type III Portable Monitor, Unattended; Minimum of 4 Channels: 2 Respiratory Movement/Airflow, 1 Ecg/Heart Rate and 1 Oxygen SaturationG0399 | 71 | $47 |
| Home Sleep Test (hst) With Type III Portable Monitor, Unattended; Minimum of 4 Channels: 2 Respiratory Movement/Airflow, 1 Ecg/Heart Rate and 1 Oxygen SaturationG0399 | 63 | $101 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 108 | 33 |
| Montelukast Sodium | 99 | 25 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 57 | 15 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 47 | — |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 37 | — |
| Prednisone | 31 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$637 across 21 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
- 2005-12-29
- Last updated
- 2023-09-26
- Certified
- 2023-09-26
Frequently asked questions
- What is George Schiffman's NPI number?
- George Schiffman's National Provider Identifier (NPI) is 1104803188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Schiffman's specialty?
- George Schiffman is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is George Schiffman located?
- George Schiffman's practice location on file with NPPES is 26800 Crown Valley Pkwy Ste 205, Mission Viejo, CA 92691-6384.
- What is George Schiffman's phone number?
- The practice phone number listed in the NPPES registry for George Schiffman is (949) 364-3330.
- Does George Schiffman accept Medicare?
- George Schiffman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is George Schiffman's NPI active?
- Yes — George Schiffman's NPI (1104803188) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.