1. Home
  2. Directory
  3. Maryland
  4. Rockville
  5. Physician Assistant
  6. NPI Profile

MR. ZAKARY P WALKER PA-C
NPI 1427225168
Physician Assistant - Medical in Rockville, MD

Active since May 12, 2008PECOS EnrolledAccepts Medicare Assignment
9901 MEDICAL CENTER DR, ROCKVILLE, MD 20850(240) 826-7750 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 21, 2022, Mar 17, 2018 (2 updates tracked since 2018).

About Mr. Zakary P Walker Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. ZAKARY P WALKER PA-C (NPI 1427225168) is an individual medical provider in Rockville, Maryland, licensed in New York (009882) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Adventist Healthcare White Oak Medical Center, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1427225168
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameMR. ZAKARY P WALKERCredential: PA-C
Location Address9901 MEDICAL CENTER DRRockville, MD 20850-3357
Mailing Address9419 Rockville PikeBethesda, MD 20814-3911 · (585) 734-7561
Phone(240) 826-7750
Sole ProprietorYes
Medical School CMSOtherGraduated 2002
Enumeration DateMay 12, 2008
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
✔ NPI 1427225168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
Licenses✔ Licensed in NY · 009882✔ Licensed in MD · C04936
9901 MEDICAL CENTER DR, Rockville, MD 20850
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Zakary P Walker Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID749435857
PECOS Enrollment IDI20130221000029
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
167 services161 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
144 services143 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
46 services46 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
22 services22 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
20 services19 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
17 services17 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventist Healthcare White Oak Medical Center

Acute Care Hospitals · Silver Spring, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210016
Location11890 Healing WaySilver Spring, MD 20904 · Montgomery County
Emergency services Birthing friendly

Suburban Hospital

Acute Care Hospitals · Bethesda, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210022
Location8600 Old Georgetown RoadBethesda, MD 20814 · Montgomery County
Emergency services

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210057
Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LOGAN HEWITT LMSW LGSM
Social Worker
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
DR. SHERRY CHANG PHARM.D.
Pharmacist (Pharmacotherapy)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (301) 294-0612
RAKESH MAKADIA M.D
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
MESFIN WOLDESENBET M.D.
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-7392
FABIAN PADRON PA-C
Physician Assistant (Surgical)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
SANDRA ST JEAN
Counselor (Professional)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6000
DR. ANUJA RASTOGI M.D.
Pediatrics
9901 MEDICAL CENTER DR, PEDIATRIC FLOOR
ROCKVILLE, MD 20850
Montgomery County (240) 826-6480
NICOLE MARIE EDWARDS PA-C
Physician Assistant (Medical)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Montgomery County (586) 703-4476

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Zakary Walker's NPI number?

The NPI number for Zakary Walker is 1427225168. It was assigned to this individual provider in the NPPES registry on May 12, 2008.

Where is Zakary Walker located?

Zakary Walker practices at 9901 Medical Center Dr, Rockville, MD 20850. The listed phone number is (240) 826-7750.

What is Zakary Walker's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Zakary Walker enrolled in Medicare?

Yes. Zakary Walker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Zakary Walker affiliated with any hospitals?

According to CMS data, Zakary Walker is affiliated with Adventist Healthcare White Oak Medical Center, Suburban Hospital and Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Zakary Walker was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.