Physician Profile
Unclaimed ProfileAbout WALKER
Marcella Donovan Walker, M.D. practises endocrinology in New York, NY. Marcella is a 1999 graduate of Johns Hopkins University School of Medicine. Marcella is also listed as specialising in endocrinology, diabetes & metabolism.
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 does Dr. Walker specialise in?
Dr. Walker is an endocrinology in New York, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ENDOCRINOLOGY”.
NPI registry
Where is Dr. Walker located?
Dr. Walker is listed at 180 FORT WASHINGTON AVE, New York, NY 10032. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Walker's phone number?
The number on file is (212) 342-1521. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Walker?
Dr. Walker's National Provider Identifier is 1003989211. 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 Dr. Walker go to medical school?
Dr. Walker attended Johns Hopkins University School of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Walker have?
Dr. Walker has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Walker do most often?
According to Medicare billing data, Dr. Walker performs imaging including dxa bone density measurement of hip, pelvis, spine and calculation of trabecular bone score using imaging data with interpretation and report on fracture risk, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Walker's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Walker. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (212) 342-1521
- Email not available
Practice Locations
180 FORT WASHINGTON AVE
New York, NY 10032
Procedures Most Often Billed to Medicare
1,890 services · 1,860 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
939 |
| Calculation of trabecular bone score (tbs) using imaging data with interpretation and report on fracture risk | Imaging | 77089 |
510 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
201 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
178 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
49 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
13 |
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 endocrinology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 32 related providers in 4 groups
Other endocrinology specialists in New York 8
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Johns Hopkins University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Dxa bone density measurement of hip, pelvis, spine 8
Providers in NY 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.