Andrew Merriman, M.D.
NPI 1467846444 · Emergency Medicine Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Merriman, M.D. is a Emergency Medicine Physician provider in Santa Rosa, CA (NPI 1467846444).
Provider details
- NPI number
- 1467846444
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A147107 (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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
474 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 205 | $175 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 114 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 93 | $121 |
| Critical Care, First 30-74 Minutes99291 | 51 | $216 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 11 | $71 |
Typical Medicare-allowed amounts for these services range $8–$216 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 16 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 15 | — |
| Doxycycline Hyclate | 13 | 13 |
| Ondansetronbrand: Ondansetron Odt | 12 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$182 across 2 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 (2)
- 1005 Van Ness AveSan Francisco, CA 94109-6913Phone: (415) 233-9901Fax: (833) 464-0177
- 505 Parnassus AveSan Francisco, CA 94143-2204Phone: (415) 353-1529
Registry dates
- Enumerated
- 2015-03-26
- Last updated
- 2025-07-05
- Certified
- 2025-07-05
Frequently asked questions
- What is Andrew Merriman's NPI number?
- Andrew Merriman's National Provider Identifier (NPI) is 1467846444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Merriman's specialty?
- Andrew Merriman is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Merriman located?
- Andrew Merriman's practice location on file with NPPES is 1165 Montgomery Dr, Santa Rosa, CA 95405-4801.
- What is Andrew Merriman's phone number?
- The practice phone number listed in the NPPES registry for Andrew Merriman is (707) 525-5300.
- Does Andrew Merriman accept Medicare?
- Andrew Merriman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Merriman's NPI active?
- Yes — Andrew Merriman's NPI (1467846444) is active in the NPPES registry as of the last update on 2025-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.