Janice Joo, MD
NPI 1639532187 · Neurology Physician · Arcadia, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janice Joo, MD is a Neurology Physician provider in Arcadia, CA (NPI 1639532187).
Provider details
- NPI number
- 1639532187
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- DR.0068885 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
7 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,305 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 253 | $143 |
| Placement of Skin Electrodes and Measurement of Stimulated Sites on Arms and Legs95938 | 210 | $45 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, 2 Extremities95861 | 209 | $80 |
| Measurement of Brain Wave Activity (eeg) Outside the Brain During Surgery95955 | 189 | $53 |
| Testing of Nerve-Muscle Junction95937 | 143 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 121 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 251 | 70 |
| Donepezil Hcl | 161 | 41 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 97 | 24 |
| Levetiracetam | 87 | 20 |
| Olanzapine | 60 | 17 |
| Primidone | 56 | — |
| Propranolol Hclbrand: Propranolol Hcl Er | 48 | 16 |
| Pregabalin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,005 across 91 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 (6)
- 24 S Weber St Ste 200Colorado Springs, CO 80903-1928Phone: (866) 226-8576Fax: (719) 387-8928
- 777 Bannock StDenver, CO 80204-4597Phone: (303) 436-4949Fax: (303) 602-6190
- 1775 Ballard RdPark Ridge, IL 60068-1005Phone: (847) 318-9340
- 601 W Spruce St Ste JMissoula, MT 59802-4047Phone: (406) 327-3350Fax: (406) 327-3355
- 3000 New Bern AveRaleigh, NC 27610-1231Phone: (919) 350-8000
- 262 Danny Thomas PlMemphis, TN 38105-3678Phone: (901) 595-3300
Registry dates
- Enumerated
- 2016-04-01
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Janice Joo's NPI number?
- Janice Joo's National Provider Identifier (NPI) is 1639532187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janice Joo's specialty?
- Janice Joo is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Janice Joo located?
- Janice Joo's practice location on file with NPPES is 1015 N 1st Ave, Arcadia, CA 91006-7401.
- What is Janice Joo's phone number?
- The practice phone number listed in the NPPES registry for Janice Joo is (626) 598-3770.
- Does Janice Joo accept Medicare?
- Janice Joo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janice Joo's NPI active?
- Yes — Janice Joo's NPI (1639532187) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.