KELLEN MULHERN D.O.
NPI 1043668437
Internal Medicine - Critical Care Medicine in Washington, DC

Active since May 26, 2016PECOS EnrolledAccepts Medicare Assignment
5255 LOUGHBORO RD NW, WASHINGTON, DC 20016(202) 537-4342 Get Directions Write a Review

NPPES record last updated: January 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 5, 2024, Jun 21, 2023, Jun 5, 2019 (3 updates tracked since 2019).

About Kellen Mulhern D.o. NPPES

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

KELLEN MULHERN D.O. (NPI 1043668437) is an individual critical care medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (DO034846) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and maintains a secondary practice location in Frederick.

NPPES Registry Identity

NPI1043668437
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameKELLEN MULHERNCredential: D.O.
Location Address5255 LOUGHBORO RD NWWashington, DC 20016-2633
Mailing Address400 W 7th StFrederick, MD 21701-4506 · (240) 439-8913
Sole ProprietorNo
Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2016
Enumeration DateMay 26, 2016
Last NPPES UpdateJanuary 30, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 30, 2025
NPI 1043668437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License Licensed in DC · DO034846
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal MedicineTaxonomy 207R00000X · License P32573 (MD)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License H97692 (MD)
Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License H97692 (MD)
5255 LOUGHBORO RD NW, Washington, DC 20016

Secondary Practice Location 1

Location 17211 Bank Ct Ste 200Frederick, MD 21703-8481 · Phone (240) 215-6310

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

Kellen Mulhern D.o. 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 ID1052601689
PECOS Enrollment IDI20230701000112
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 23

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.
215 services130 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.
146 services69 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
117 services115 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
110 services110 patients
Test to determine lung volumes using sensors 94726
This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.
76 services73 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
75 services72 patients

Hospital Affiliations CMS Care Compare

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

Frederick Health Hospital

Acute Care Hospitals · Frederick, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210005
Location400 West Seventh StFrederick, MD 21701 · Frederick County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20016 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

Nurse Practitioner
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Obstetrics & Gynecology
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Physician Assistant (Surgical)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Pharmacist
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Radiology (Radiological Physics)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Anesthesiology
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Pathology (Cytopathology)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
Radiology (Diagnostic Radiology)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016

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 Kellen Mulhern's NPI number?

The NPI number for Kellen Mulhern is 1043668437. It was assigned to this individual provider in the NPPES registry on May 26, 2016.

Where is Kellen Mulhern located?

Kellen Mulhern practices at 5255 Loughboro Rd NW, Washington, DC 20016. The listed phone number is (202) 537-4342.

What is Kellen Mulhern's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Kellen Mulhern enrolled in Medicare?

Yes. Kellen Mulhern 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 Kellen Mulhern affiliated with any hospitals?

According to CMS data, Kellen Mulhern is affiliated with Frederick Health Hospital.

When was this NPI record last updated?

The NPPES record for Kellen Mulhern was last updated on January 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.