COLLEEN CHRISTMAS M.D.
NPI 1013968114
Internal Medicine - Geriatric Medicine in Baltimore, MD

Q: What is Colleen Christmas's NPI number?

The NPI number for Colleen Christmas is 1013968114. It was assigned to this individual provider in the NPPES registry on May 13, 2006.

Q: What is Colleen Christmas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Colleen Christmas was last updated on January 31, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since May 13, 2006PECOS Enrolled

5505 HOPKINS BAYVIEW CIR, BALTIMORE, MD 21224(410) 550-0925 Get Directions Write a Review

NPPES record last updated: January 31, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Colleen Christmas M.d. NPPES

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

COLLEEN CHRISTMAS M.D. (NPI 1013968114) is an individual geriatric medicine provider in Baltimore, Maryland, licensed in Maryland (D51185) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of University Of Connecticut School Of Medicine (1993).

NPPES Registry Identity

NPI1013968114

Entity TypeIndividualFemale

Primary Taxonomy207RG0300X

Provider Legal NameCOLLEEN CHRISTMASCredential: M.D.

Location Address5505 HOPKINS BAYVIEW CIRBaltimore, MD 21224-6821

Mailing AddressPo Box 64264Baltimore, MD 21264-4264

Phone(410) 550-0925

Sole ProprietorNo

Medical School CMSUniversity Of Connecticut School Of MedicineGraduated 1993

Enumeration DateMay 13, 2006

Last NPPES UpdateJanuary 31, 2014

✔ NPI 1013968114 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in MD · D51185

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

5505 HOPKINS BAYVIEW CIR, Baltimore, MD 21224

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Other Identifiers 3

Medicaid691000900MD

Medicare PINKR65B297MD

Medicare UPING43494MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Colleen Christmas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3678664471

PECOS Enrollment IDI20070808000595

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.

Medicare Billing Reassignments

Medicare enrollment records show Colleen Christmas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins University

Same address

Clinical Medical Laboratory

5501 HOPKINS BAYVIEW CIR, ROOM 1A20
Baltimore, MD 21224

Reassigned Medicare billing, Maryland enrollment
4,483 clinicians in this Medicare group

NPI 1306810619 (410) 550-3362

Banner-University Medical Group

1,975 mi

Nutrition, Education

8290 S HOUGHTON RD STE 150
Tucson, AZ 85747

Reassigned Medicare billing, Arizona enrollment
1,514 clinicians in this Medicare group

NPI 1508673682 (520) 874-3111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.

182 services119 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.

101 services96 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

89 services89 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.

64 services44 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.

20 services17 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

14 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210029

Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21224 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

$183.44 typical visit price

range $60.73 – $183.44

Typical copayment $45.86 (range $15.18 – $45.86)

Most-billed visit code 99205

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.

TRICIA PATEL

Nurse Practitioner (Primary Care)