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

Q: 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.

Q: 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.

Q: 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 21 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.

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: October 25, 2026.

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

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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

Phone(202) 537-4342

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

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Secondary Practice Location 1

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

Medicare Participation & PECOS CMS

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

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 IDI20200116001032, I20230701000112

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 Kellen Mulhern reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins Community Physicians

3.9 mi

Internal Medicine

4102 WILSON BLVD
Arlington, VA 22203

Reassigned Medicare billing, District of Columbia enrollment
691 clinicians in this Medicare group

NPI 1902626765 (703) 462-1777

Medical Faculty Associates, Inc

4.0 mi

Anesthesiology

2150 PENNSYLVANIA AVE NW, SUITE 10-409A
Washington, DC 20037

Reassigned Medicare billing, District of Columbia enrollment
1,275 clinicians in this Medicare group

NPI 1417990581 (202) 741-3350

Frederick Health Medical Group LLC

30 mi

Family Medicine

504 E RIDGEVILLE BLVD
Mount Airy, MD 21771

Reassigned Medicare billing, Maryland enrollment
245 clinicians in this Medicare group

NPI 1114771862 (240) 215-6310

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 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

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.

75 services60 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

59 services56 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

40 services24 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

21 services20 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

19 services18 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

18 services16 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

17 services17 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.

17 services15 patients

Computer-assisted image-guided navigation of lung airways using an endoscope 31627

This procedure involves the use of a special camera, called an endoscope, and computer technology to create real-time images of your lung airways. This helps doctors navigate through your lungs accurately, aiding in diagnosis or treatment.

13 services13 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

13 services13 patients

Biopsy of lung airway using an endoscope 31625

A biopsy of the lung airway using an endoscope is a procedure where a small, flexible tube with a light and camera is inserted through your mouth or nose to reach your lungs. A tiny tool on the endoscope collects a small tissue sample for examination.

12 services12 patients

Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope 31629

A needle biopsy of windpipe cartilage, airway, or lung involves using a thin, flexible tube with a camera (endoscope) to access and collect tissue samples. This procedure helps doctors diagnose lung conditions or diseases effectively and safely.

12 services12 patients

Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound 31654

This procedure involves using a specialized instrument, called an endoscope, to examine the lung airways. An ultrasound is also used to get a clearer image of any growths. If necessary, the doctor can perform procedures to diagnose or treat these growths.

12 services12 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

12 services11 patients

Test to examine how well the lungs exchange gases 94729

12 services12 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

12 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 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.

DANIEL RICHARD STAIRIKER CRNP

Nurse Practitioner