Physician Profile
Unclaimed ProfileAbout HAMMACK
Joy A Hammack, CRNA is a certified registered nurse anesthetist (crna) based in Baltimore, MD. Joy is also listed as specialising in registered nurse and certified registered nurse anesthetist. Medicare claims data shows Joy provided 318 services to 307 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Hammack's specialty?
Dr. Hammack is a certified registered nurse anesthetist (crna) in Baltimore, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)”.
NPI registry
Where can I find Dr. Hammack?
Dr. Hammack is listed at 22 S GREENE ST, Baltimore, MD 21201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hammack?
The number on file is (800) 492-5538. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hammack?
Dr. Hammack's National Provider Identifier is 1831435023. 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
What is Dr. Hammack's medical education?
Dr. Hammack attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hammack have?
Dr. Hammack has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Hammack known for?
According to Medicare billing data, Dr. Hammack provides treatments such as anesthesia for lens surgery and anesthesia for other procedure on eye. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hammack's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hammack. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (800) 492-5538
- Email not available
Practice Locations
22 S GREENE ST
Baltimore, MD 21201
Procedures Most Often Billed to Medicare
318 services · 307 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for lens surgery | Anaesthesia | 00142 |
187 |
| Anesthesia for other procedure on eye | Anaesthesia | 00140 |
50 |
| Anesthesia for exam of colon using an endoscope | Anaesthesia | 00812 |
22 |
| Anesthesia for other procedure on large bowel using an endoscope | Anaesthesia | 00811 |
18 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
18 |
| Anesthesia for insertion of permanent heart pacemaker | Anaesthesia | 00530 |
12 |
| Anesthesia for total hip replacement | Anaesthesia | 01214 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other certified registered nurse anesthetists at this location 1
Same specialty, same street address — most likely the same department or group.
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 certified registered nurse anesthetists in Baltimore 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for lens surgery 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.