CLARA S.P. CHAN, MD, PC
CLARA S.P. CHAN, MD, PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1144557240, based in Silver Spring, MD. It is classified under Hematology & Oncology Physician.
Getting there
The practice address on file is 9801 GEORGIA AVE SUITE 337, Silver Spring, MD 20902. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| D41828 | MD | Hematology & Oncology Physician primary |
This provider holds licence D41828 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 9032258132
- Enrollment ID
- O20091203000061
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Hematology & Oncology covers
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered. NUCC Health Care Provider Taxonomy, code 207RH0003X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1144557240 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Nov 10, 2009 |
| Last updated | Nov 10, 2009 |
| Status | Active |
| Practice address |
9801 GEORGIA AVE SUITE 337 Silver Spring, MD 20902 (301) 681-4600 Fax (301) 681-4648 |
| Other identifiers |
3000099
· Other 910976 · Other (MD) 830006377 · Other OC22CS · Other (MD) 3601884 · Other 5074 · Other (DC) 0004140133 · Other 083091700 · Medicaid (MD) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 4 | 4 | 5 | 5 | 7 | 2 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 8 | 4 | 1 | 5 | 5 | 2 | 8 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.