Physician Profile
Unclaimed ProfileAbout SEIN
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Areas of Expertise
Common questions
What does Dr. Sein specialise in?
Dr. Sein is an internist in Waldorf, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Where is Dr. Sein located?
Dr. Sein is listed at 3460 OLD WASHINGTON RD SUITE 203A, Waldorf, MD 20602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sein's phone number?
The number on file is (301) 934-8811. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Sein's NPI number?
Dr. Sein's National Provider Identifier is 1699769554. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Sein been practising?
Dr. Sein has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
What does Dr. Sein do most often?
According to Medicare billing data, Dr. Sein provides treatments such as influenza vaccine, trivalent derived from cell cultures and influenza vaccine, inactivated, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Sein confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sein. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (301) 934-8811
- Email not available
Practice Locations
3460 OLD WASHINGTON RD SUITE 203A
Waldorf, MD 20602
Procedures Most Often Billed to Medicare
1,728 services · 1,097 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine, trivalent derived from cell cultures | Treatment | 90661 |
105 |
| Influenza vaccine, inactivated | Treatment | 90653 |
75 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
45 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
35 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,120 |
| Administration of influenza virus vaccine | Billing code | G0008 |
182 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
155 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 16 related providers in 2 groups
Other internists in Waldorf 8
Same specialty, same city.
Also performs Influenza vaccine, trivalent derived from cell cultures 8
Providers in MD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.