William Han, M.D.
NPI 1558325316 · Pulmonary Disease Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Han, M.D. is a Pulmonary Disease Physician provider in Baltimore, MD (NPI 1558325316).
Provider details
- NPI number
- 1558325316
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0060796 (MD)
Specialties & taxonomies
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 tenure28% of score
20 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
270 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 165 | $217 |
| Critical Care, Each Additional 30 Minutes99292 | 72 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 33 | $121 |
Typical Medicare-allowed amounts for these services range $109–$217 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2016-10-27
Frequently asked questions
- What is William Han's NPI number?
- William Han's National Provider Identifier (NPI) is 1558325316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Han's specialty?
- William Han is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Han located?
- William Han's practice location on file with NPPES is 2700 Quarry Lake Dr, Baltimore, MD 21209-3742.
- What is William Han's phone number?
- The practice phone number listed in the NPPES registry for William Han is (410) 601-9200.
- Does William Han accept Medicare?
- William Han is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Han's NPI active?
- Yes — William Han's NPI (1558325316) is active in the NPPES registry as of the last update on 2016-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.