Provider Profile
Sondra B. Barker, C.R.N.P.
Unclaimed ProfileAbout Sondra Barker
Sondra B. Barker, C.R.N.P. is a nurse practitioner based in Baltimore, MD. Medicare claims data shows Sondra provided 491 services to 306 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, instillation of anti-cancer drug into bladder, and urinalysis, manual test.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 644-0929
- Email not available
Practice Locations
3407 WILKENS AVE SUITE 210
Baltimore, MD 21229
Procedures Most Often Billed to Medicare
491 services · 306 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Instillation of anti-cancer drug into bladder | Procedure | 51720 |
120 | More often than most peers in Nurse Practitioner |
| Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings | Procedure | 51784 |
19 | As often as other peers in Nurse Practitioner |
| Simple timed assessment of bladder emptying | Procedure | 51736 |
19 | Too few peers to compare |
| Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies | Procedure | 51729 |
16 | Less often than most peers in Nurse Practitioner |
| Pessary, reusable, non rubber, any type | A4562 |
18 | Less often than most peers in Nurse Practitioner | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
198 | More often than most peers in Nurse Practitioner |
| Urinalysis, manual test | Lab test | 81002 |
57 | More often than most peers in Nurse Practitioner |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
44 | More often than most peers in Nurse Practitioner |
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.
Related specialists at this location 6
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.
Other nurse practitioners in Baltimore 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Instillation of anti-cancer drug into bladder 8
Providers in MD who bill this service to Medicare most often.
Common questions
What kind of doctor is Sondra B. Barker?
Sondra B. Barker is a nurse practitioner in Baltimore, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Sondra B. Barker's address?
Sondra B. Barker is listed at 3407 Wilkens Ave Suite 210, Baltimore, MD 21229. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Sondra B. Barker?
The number on file is (410) 644-0929. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Sondra B. Barker?
Sondra B. Barker's National Provider Identifier is 1437253127. 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
Where did Sondra B. Barker train?
Sondra B. Barker attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Sondra B. Barker have?
Sondra B. Barker has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What procedures does Sondra B. Barker perform?
According to Medicare billing data, Sondra B. Barker performs procedures including instillation of anti-cancer drug into bladder, non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings and simple timed assessment of bladder emptying, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Sondra B. Barker's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sondra B. Barker. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.