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ALEXANDER O. WALKER III M.D.
NPI 1033182688
Emergency Medicine in Melrose, MA

Active since February 13, 2006PECOS EnrolledAccepts Medicare Assignment
585 LEBANON ST, MELROSE, MA 02176(781) 979-3635 Get Directions Write a Review

NPPES record last updated: April 28, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Alexander O. Walker Iii M.d. NPPES

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

ALEXANDER O. WALKER III M.D. (NPI 1033182688) is an individual emergency medicine provider in Melrose, Massachusetts, licensed in Massachusetts (216791) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Melrosewakefield Healthcare, and is a graduate of Boston University School Of Medicine (2000).

NPPES Registry Identity

NPI1033182688
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameALEXANDER O. WALKER IIICredential: M.D.
Location Address585 LEBANON STMelrose, MA 02176-3225
Mailing Address585 Lebanon StMelrose, MA 02176-3225 · (781) 979-3635
Phone(781) 979-3635
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2000
Enumeration DateFebruary 13, 2006
Last NPPES UpdateApril 28, 2008
✔ NPI 1033182688 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in MA · 216791✔ Licensed in CA · A85740
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
585 LEBANON ST, Melrose, MA 02176
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Other Identifiers 4

Medicare PINUX0913MA
OtherJ26468MA · Bcbs
Medicaid2013568MA
Medicare PINA35662MA

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

Alexander O. Walker Iii M.d. 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 ID9537109947
PECOS Enrollment IDI20050505000145
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 3

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.

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.
50 services50 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
29 services28 patients
Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042
An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.
28 services28 patients

Hospital Affiliations CMS Care Compare

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

Melrosewakefield Healthcare

Acute Care Hospitals · Melrose, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220070
Location585 Lebanon StreetMelrose, MA 02176 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02176 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ROBERT STOICA PHARMD
Pharmacist
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3000
JOSHUA P STEIN M.D.
Radiology (Diagnostic Radiology)
585 LEBANON ST, HALLMARK IMAGING
MELROSE, MA 02176
Middlesex County (781) 979-3117
SARAH BLOOM
Physician Assistant
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3635
KASHIF SAMAD
Internal Medicine
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3000
METROPOLITAN ANESTHESIA, LLC
Anesthesiology
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3000
ELLEN ANNA RAWNSLEY RPH
Pharmacist
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3855
KRISTIN MARIE TAMMARO NP
Nurse Practitioner (Acute Care)
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3000
SOPHIA MARIA PROSCHEL
Internal Medicine
585 LEBANON ST
MELROSE, MA 02176
Middlesex County (781) 979-3000

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 Alexander Walker's NPI number?

The NPI number for Alexander Walker is 1033182688. It was assigned to this individual provider in the NPPES registry on February 13, 2006.

Where is Alexander Walker located?

Alexander Walker practices at 585 Lebanon St, Melrose, MA 02176. The listed phone number is (781) 979-3635.

What is Alexander Walker's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Alexander Walker enrolled in Medicare?

Yes. Alexander 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 Alexander Walker affiliated with any hospitals?

According to CMS data, Alexander Walker is affiliated with Melrosewakefield Healthcare.

When was this NPI record last updated?

The NPPES record for Alexander Walker was last updated on April 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.