Michael Keng, M.D.
NPI 1558512921 · Hematology (Internal Medicine) Physician · Charlottesville, VA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Keng, M.D. is a Hematology (Internal Medicine) Physician provider in Charlottesville, VA (NPI 1558512921).
Provider details
- NPI number
- 1558512921
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101256681 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
608 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 184 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 160 | $93 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 154 | $34 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 85 | $138 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 25 | $174 |
Typical Medicare-allowed amounts for these services range $34–$174 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 50 | 14 |
| Hydroxyurea | 42 | 11 |
| Venetoclaxbrand: Venclexta | 41 | 15 |
| Allopurinol | 20 | 13 |
| Ivosidenibbrand: Tibsovo | 18 | — |
| Posaconazole | 17 | — |
| Isavuconazonium Sulfatebrand: Cresemba | 12 | — |
| Prochlorperazine Maleate |
Practice location
Mailing address
Additional practice locations (1)
- 1215 Lee StCharlottesville, VA 22908-0817Phone: (434) 924-0211
Registry dates
- Enumerated
- 2008-10-03
- Last updated
- 2023-08-10
- Certified
- 2023-08-10
Frequently asked questions
- What is Michael Keng's NPI number?
- Michael Keng's National Provider Identifier (NPI) is 1558512921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Keng's specialty?
- Michael Keng is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Keng located?
- Michael Keng's practice location on file with NPPES is 1240 Lee St, Charlottesville, VA 22908-0817.
- What is Michael Keng's phone number?
- The practice phone number listed in the NPPES registry for Michael Keng is (434) 924-9333.
- Does Michael Keng accept Medicare?
- Michael Keng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Keng's NPI active?
- Yes — Michael Keng's NPI (1558512921) is active in the NPPES registry as of the last update on 2023-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.