MS. ALLEGRA JACQUELINE HAMMAN CRNP
NPI 1104049063
Nurse Practitioner in Lutherville Timonium, MD

Active since April 10, 2007PECOS Enrolled
10753 FALLS RD, JOHNS HOPKINS AT GREEN SPRING SUITE 315, LUTHERVILLE TIMONIUM, MD 21093(410) 583-2926(410) 583-2883 Get Directions Write a Review

NPPES record last updated: July 23, 2013. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Ms. Allegra Jacqueline Hamman Crnp NPPES

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

MS. ALLEGRA JACQUELINE HAMMAN CRNP (NPI 1104049063) is an individual nurse practitioner in Lutherville Timonium, Maryland, licensed in Maryland (R109043) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1104049063
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. ALLEGRA JACQUELINE HAMMANCredential: CRNP
Location Address10753 FALLS RD, JOHNS HOPKINS AT GREEN SPRING SUITE 315Lutherville Timonium, MD 21093-4535
Mailing Address10753 Falls Rd, Johns Hopkins At Green Spring Suite 315Lutherville Timonium, MD 21093-4535 · (410) 583-2926 · Fax (410) 583-2883
Fax(410) 583-2883
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateApril 10, 2007
Last NPPES UpdateJuly 23, 2013
NPI 1104049063 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in MD · R109043
Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

10753 FALLS RD, Lutherville Timonium, MD 21093

Other Identifiers 2

Medicaid570039600MD
Medicare PIN206695Y82MD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Ms. Allegra Jacqueline Hamman Crnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3072796382
PECOS Enrollment IDI20110324000234
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 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
209 services177 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
176 services157 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
23 services13 patients
Transitional care management services for problem of high complexity 99496
Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.
18 services18 patients

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 21093 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.

Orthopaedic Surgery (Sports Medicine)
10753 FALLS RD, 215
LUTHERVILLE, MD 21093
Physical Therapist
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093
Physical Therapist
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093
Physical Therapist
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093
Physical Therapist
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093
Occupational Therapist
10753 FALLS RD
LUTHERVILLE, MD 21093
Occupational Therapist (Neurorehabilitation)
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093
Occupational Therapist
10753 FALLS RD, SUITE 235
LUTHERVILLE, MD 21093

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 Allegra Hamman's NPI number?

The NPI number for Allegra Hamman is 1104049063. It was assigned to this individual provider in the NPPES registry on April 10, 2007.

Where is Allegra Hamman located?

Allegra Hamman practices at 10753 Falls Rd Johns Hopkins At Green Spring Suite 315, Lutherville Timonium, MD 21093. The listed phone number is (410) 583-2926.

What is Allegra Hamman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Allegra Hamman enrolled in Medicare?

Yes. Allegra Hamman is registered in the Medicare PECOS enrollment system.

Is Allegra Hamman affiliated with any hospitals?

According to CMS data, Allegra Hamman is affiliated with Johns Hopkins Hospital, The.

When was this NPI record last updated?

The NPPES record for Allegra Hamman was last updated on July 23, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.