Ricardo Bullen, MD
Ricardo Bullen, MD is a MOHS-Micrographic Surgery Physician in Washington, DC, registered under NPI 1932275724. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2150 PENNSYLVANIA AVE NW SECOND FLOOR, Washington, DC 20037. 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 |
|---|---|---|
| 75055 | MA | MOHS-Micrographic Surgery Physician primary |
| MD037134 | DC | Procedural Dermatology Physician |
| MD037134 | DC | Dermatology Physician |
| A048415 | CA | Procedural Dermatology Physician |
| A048415 | CA | MOHS-Micrographic Surgery Physician |
| A048415 | CA | Dermatology Physician |
| MD037134 | DC | MOHS-Micrographic Surgery Physician |
| 75055 | MA | Procedural Dermatology Physician |
| 75055 | MA | Dermatology Physician |
Licences are recorded in 3 states: MA, DC, CA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 3 states
This provider holds licences in 3 states: California, District of Columbia and Massachusetts. The practice address on file is in Washington, DC, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- MD037134
- Specialty
- Procedural Dermatology Physician
- Licence
- 75055
- Specialty
- MOHS-Micrographic Surgery Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What MOHS-Micrographic Surgery covers
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S. NUCC Health Care Provider Taxonomy, code 207ND0101X
All registered taxonomy codes
This provider registers 9 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | 75055 | MA | primary |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | MD037134 | DC | |
| 207N00000X | Dermatology Physician | MD037134 | DC | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | A048415 | CA | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | A048415 | CA | |
| 207N00000X | Dermatology Physician | A048415 | CA | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | MD037134 | DC | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | 75055 | MA | |
| 207N00000X | Dermatology Physician | 75055 | MA |
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1932275724 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 26, 2006 |
| Last updated | May 25, 2010 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
2150 PENNSYLVANIA AVE NW SECOND FLOOR Washington, DC 20037 (202) 741-2618 Fax (202) 741-2609 |
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 | 9 | 3 | 2 | 2 | 7 | 5 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 6 | 2 | 4 | 7 | 1 | 7 | 4 |
Sum = 66 · next multiple of 10 = 70 · check digit = 4 · actual last digit = 4
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.