Quan Chiem
NPI 1831752088 · Hospitalist Physician · Flushing, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Quan Chiem is a Hospitalist Physician provider in Flushing, NY (NPI 1831752088).
Provider details
- NPI number
- 1831752088
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 318842 (NY)
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
7 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
426 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 264 | $85 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 94 | $129 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 57 | $188 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 11 | $89 |
Typical Medicare-allowed amounts for these services range $85–$188 (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
- 2019-04-15
- Last updated
- 2025-06-10
- Certified
- 2025-06-10
Frequently asked questions
- What is Quan Chiem's NPI number?
- Quan Chiem's National Provider Identifier (NPI) is 1831752088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Quan Chiem's specialty?
- Quan Chiem is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Quan Chiem located?
- Quan Chiem's practice location on file with NPPES is 5645 Main St, Flushing, NY 11355-5045.
- What is Quan Chiem's phone number?
- The practice phone number listed in the NPPES registry for Quan Chiem is (718) 670-2000.
- Does Quan Chiem accept Medicare?
- Quan Chiem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Quan Chiem's NPI active?
- Yes — Quan Chiem's NPI (1831752088) is active in the NPPES registry as of the last update on 2025-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.