Timothy Castellaw, PA-C
NPI 1164440533 · Medical Physician Assistant · Eatonton, GA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Castellaw, PA-C is a Medical Physician Assistant provider in Eatonton, GA (NPI 1164440533).
Provider details
- NPI number
- 1164440533
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 1852 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
415 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 104 | $12 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 98 | $78 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 52 | $16 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 45 | $96 |
| Automated Urinalysis Test81003 | 32 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 61 | 56 |
| Azithromycin | 52 | 51 |
| Cefuroxime Axetilbrand: Cefuroxime | 50 | 48 |
| Diclofenac Sodium | 47 | 23 |
| Methylprednisolone | 43 | 42 |
| Fluconazole | 36 | 21 |
| Ciprofloxacin Hcl | 35 | 32 |
| Meloxicam | 33 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2020-10-23
- Certified
- 2020-10-23
Frequently asked questions
- What is Timothy Castellaw's NPI number?
- Timothy Castellaw's National Provider Identifier (NPI) is 1164440533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Castellaw's specialty?
- Timothy Castellaw is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Timothy Castellaw located?
- Timothy Castellaw's practice location on file with NPPES is 114 Harmony Xing Ste 1, Eatonton, GA 31024-9546.
- What is Timothy Castellaw's phone number?
- The practice phone number listed in the NPPES registry for Timothy Castellaw is (706) 484-0884.
- Does Timothy Castellaw accept Medicare?
- Timothy Castellaw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Castellaw's NPI active?
- Yes — Timothy Castellaw's NPI (1164440533) is active in the NPPES registry as of the last update on 2020-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.