Sean Gunther Maher, MD
NPI 1851788665 · Critical Care Medicine (Internal Medicine) Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Gunther Maher, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Sacramento, CA (NPI 1851788665).
Provider details
- NPI number
- 1851788665
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A173063 (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
11 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
473 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 | 186 | $219 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 137 | $123 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $139 |
| Critical Care, Each Additional 30 Minutes99292 | 33 | $110 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 28 | $181 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 24 |
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 |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 85 | 43 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 28 | — |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 23 | — |
| Budesonide/Formoterol Fumaratebrand: Symbicort | 23 | — |
| Albuterol Sulfatebrand: Ventolin Hfa | 18 | — |
| Azithromycin | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$256 across 11 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
Additional practice locations (1)
- 5 Medical Plaza Dr Ste 190Roseville, CA 95661-2867Phone: (916) 786-7498Fax: (916) 786-2715
Registry dates
- Enumerated
- 2015-04-20
- Last updated
- 2021-08-11
- Certified
- 2021-08-11
Frequently asked questions
- What is Sean Gunther Maher's NPI number?
- Sean Gunther Maher's National Provider Identifier (NPI) is 1851788665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Gunther Maher's specialty?
- Sean Gunther Maher is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Gunther Maher located?
- Sean Gunther Maher's practice location on file with NPPES is 1508 Alhambra Blvd Ste 200, Sacramento, CA 95816-6510.
- What is Sean Gunther Maher's phone number?
- The practice phone number listed in the NPPES registry for Sean Gunther Maher is (916) 325-1040.
- Does Sean Gunther Maher accept Medicare?
- Sean Gunther Maher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Gunther Maher's NPI active?
- Yes — Sean Gunther Maher's NPI (1851788665) is active in the NPPES registry as of the last update on 2021-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.