Michelle Armacost, M.D.
NPI 1609136316 · Neurology Physician · Downey, CA
Enrolled with Medicare as Order and Referring Only - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Armacost, M.D. is a Neurology Physician provider in Downey, CA (NPI 1609136316).
Provider details
- NPI number
- 1609136316
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A125818 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lacosamide | 55 | 12 |
| Clobazam | 52 | — |
| Levetiracetam | 43 | 14 |
| Lamotrigine | 31 | — |
| Zonisamide | 17 | — |
| Phenobarbital | 15 | — |
| Topiramate | 14 | — |
| Oxcarbazepine | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$150 across 6 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
- 2012-05-29
- Last updated
- 2020-05-19
- Certified
- 2020-05-19
Frequently asked questions
- What is Michelle Armacost's NPI number?
- Michelle Armacost's National Provider Identifier (NPI) is 1609136316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Armacost's specialty?
- Michelle Armacost is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Armacost located?
- Michelle Armacost's practice location on file with NPPES is 7601 Imperial Hwy, Downey, CA 90242-3456.
- What is Michelle Armacost's phone number?
- The practice phone number listed in the NPPES registry for Michelle Armacost is (562) 385-7555.
- Does Michelle Armacost accept Medicare?
- Michelle Armacost is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Armacost's NPI active?
- Yes — Michelle Armacost's NPI (1609136316) is active in the NPPES registry as of the last update on 2020-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.