Karl Maki, M.D.
NPI 1639465883 · Neurology Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Maki, M.D. is a Neurology Physician provider in Annapolis, MD (NPI 1639465883).
Provider details
- NPI number
- 1639465883
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D81220 (MD)
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
14 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
2,744 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,084 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 916 | $185 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 217 | $131 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Neck Excluding Voice Box64616 | 95 | $212 |
| Needle Measurement of Electrical Activity in Muscle With Injection of Chemical for Paralysis of Nerve Muscle95874 | 85 | $78 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 998 | 275 |
| Donepezil Hcl | 320 | 96 |
| Gabapentin | 230 | 75 |
| Carbidopa/Levodopabrand: Rytary | 170 | 33 |
| Amantadine Hclbrand: Amantadine | 167 | 54 |
| Primidone | 163 | 45 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 158 | 54 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,416 across 250 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
- 2011-06-27
- Last updated
- 2016-06-23
Frequently asked questions
- What is Karl Maki's NPI number?
- Karl Maki's National Provider Identifier (NPI) is 1639465883, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Maki's specialty?
- Karl Maki is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Maki located?
- Karl Maki's practice location on file with NPPES is 122 Defense Hwy, Annapolis, MD 21401-7069.
- What is Karl Maki's phone number?
- The practice phone number listed in the NPPES registry for Karl Maki is (410) 266-9694.
- Does Karl Maki accept Medicare?
- Karl Maki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Maki's NPI active?
- Yes — Karl Maki's NPI (1639465883) is active in the NPPES registry as of the last update on 2016-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.