Thomas Keyserling, MD
NPI 1336164615 · Internal Medicine Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Keyserling, MD is a Internal Medicine Physician provider in Chapel Hill, NC (NPI 1336164615).
Provider details
- NPI number
- 1336164615
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29307 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
726 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) |
|---|---|---|
| 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 | 250 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 107 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $84 |
| Admn Sarscov2 Vacc 1 Dose90480 | 32 | $41 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 112 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 470 | 135 |
| Amlodipine Besylate | 323 | 88 |
| Losartan Potassium | 195 | 53 |
| Hydrochlorothiazide | 181 | 55 |
| Gabapentin | 167 | 48 |
| Omeprazole | 162 | 54 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Keyserling's NPI number?
- Thomas Keyserling's National Provider Identifier (NPI) is 1336164615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Keyserling's specialty?
- Thomas Keyserling is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Keyserling located?
- Thomas Keyserling's practice location on file with NPPES is 101 Manning Dr, Chapel Hill, NC 27599-0001.
- What is Thomas Keyserling's phone number?
- The practice phone number listed in the NPPES registry for Thomas Keyserling is (919) 966-4996.
- Does Thomas Keyserling accept Medicare?
- Thomas Keyserling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Keyserling's NPI active?
- Yes — Thomas Keyserling's NPI (1336164615) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.