JOHN HAYWARD HAMMOND MD
NPI 1477012300
Pediatrics in Baltimore, MD

Active since March 19, 2019PECOS Enrolled
600 N WOLFE ST, BALTIMORE, MD 21287(248) 225-6176 Get Directions Write a Review

NPPES record last updated: April 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 18, 2019, Mar 19, 2019 (2 updates tracked since 2019).

About John Hayward Hammond Md NPPES

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

JOHN HAYWARD HAMMOND MD (NPI 1477012300) is an individual pediatrics provider in Baltimore, Maryland, licensed in Maryland (D93745) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Warren Alpert Medical School Of Brown University (2019).

NPPES Registry Identity

NPI1477012300
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameJOHN HAYWARD HAMMONDCredential: MD
Location Address600 N WOLFE STBaltimore, MD 21287-0005
Mailing Address6201 Greenleigh AveBaltimore, MD 21220-2004 · (410) 933-6423
Sole ProprietorNo
Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2019
Enumeration DateMarch 19, 2019
Last NPPES UpdateApril 30, 20252 updates tracked since enumeration
NPPES CertifiedApril 30, 2025
NPI 1477012300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License Licensed in MD · D93745
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
600 N WOLFE ST, Baltimore, MD 21287

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

John Hayward Hammond Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9830424175
PECOS Enrollment IDI20250516000334
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.

Hospital Affiliations CMS Care Compare

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

Physician Assistant (Medical)
600 N WOLFE ST, NELSON 2-133
BALTIMORE, MD 21287
Physician Assistant
600 N WOLFE ST, MARBURG B-186
BALTIMORE, MD 21287
Pathology (Anatomic Pathology & Clinical Pathology)
600 N WOLFE ST
BALTIMORE, MD 21287
Dental Hygienist
600 N WOLFE ST, BLALOCK 266
BALTIMORE, MD 21287
Nurse Practitioner (Acute Care)
600 N WOLFE ST
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
600 N WOLFE ST
BALTIMORE, MD 21287
Psychiatry & Neurology (Psychiatry)
600 N WOLFE ST
BALTIMORE, MD 21287
Student in an Organized Health Care Education/Training Program
600 N WOLFE ST
BALTIMORE, MD 21287

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 John Hammond's NPI number?

The NPI number for John Hammond is 1477012300. It was assigned to this individual provider in the NPPES registry on March 19, 2019.

Where is John Hammond located?

John Hammond practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (248) 225-6176.

What is John Hammond's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is John Hammond enrolled in Medicare?

Yes. John Hammond is registered in the Medicare PECOS enrollment system.

Is John Hammond affiliated with any hospitals?

According to CMS data, John Hammond is affiliated with Johns Hopkins Hospital, The.

When was this NPI record last updated?

The NPPES record for John Hammond was last updated on April 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.