Isaac Annan, MD
NPI 1336112234 · Neurology Physician · Macon, GA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Annan, MD is a Neurology Physician provider in Macon, GA (NPI 1336112234).
Provider details
- NPI number
- 1336112234
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036111711 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
318 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 127 | $75 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 75 | $47 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 57 | $164 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 32 | $53 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 27 | $123 |
Typical Medicare-allowed amounts for these services range $47–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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 (3)
- 640 E Oregon RdLititz, PA 17543-9202Phone: (717) 569-8773Fax: (717) 735-7992
- 3200 E Racine StJanesville, WI 53546-2343Phone: (608) 371-8000Fax: (608) 371-8943
- 1836 South AveLa Crosse, WI 54601-5429Phone: (608) 782-7300
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2023-12-01
- Certified
- 2023-12-01
Frequently asked questions
- What is Isaac Annan's NPI number?
- Isaac Annan's National Provider Identifier (NPI) is 1336112234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Annan's specialty?
- Isaac Annan is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Annan located?
- Isaac Annan's practice location on file with NPPES is 350 Hospital Dr, Macon, GA 31217-3838.
- What is Isaac Annan's phone number?
- The practice phone number listed in the NPPES registry for Isaac Annan is (470) 788-1010.
- Does Isaac Annan accept Medicare?
- Isaac Annan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Annan's NPI active?
- Yes — Isaac Annan's NPI (1336112234) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.