DARWIN ASHBAKER M.D.
NPI 1114286127
Internal Medicine - Pulmonary Disease in Baltimore, MD

Q: What is Darwin Ashbaker's NPI number?

The NPI number for Darwin Ashbaker is 1114286127. It was assigned to this individual provider in the NPPES registry on May 10, 2012.

Q: What is Darwin Ashbaker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Darwin Ashbaker was last updated on November 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 10, 2012PECOS EnrolledAccepts Medicare Assignment

900 CATON AVE, BALTIMORE, MD 21229(410) 368-6000 Get Directions Write a Review

NPPES record last updated: November 29, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 29, 2022, Sep 18, 2020, May 25, 2018 and 1 more (4 updates tracked since 2017).

On this page

About Darwin Ashbaker M.d. NPPES

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

DARWIN ASHBAKER M.D. (NPI 1114286127) is an individual pulmonary disease provider in Baltimore, Maryland, licensed in Maryland (D83149) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with University Of Md Baltimore Washington Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1114286127

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDARWIN ASHBAKERCredential: M.D.

Location Address900 CATON AVEBaltimore, MD 21229

Mailing Address900 Elkridge Landing Rd Fl 2Linthicum, MD 21090-2924 · (443) 462-5010 · Fax (410) 684-2031

Phone(410) 368-6000

Sole ProprietorYes

Medical School CMSOtherGraduated 2011

Enumeration DateMay 10, 2012

Last NPPES UpdateNovember 29, 20224 updates tracked since enumeration

NPPES CertifiedNovember 3, 2022

✔ NPI 1114286127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in MD · D83149

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal MedicineTaxonomy 207R00000X · License D83149 (MD)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License D83149 (MD)

900 CATON AVE, Baltimore, MD 21229

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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

Darwin Ashbaker M.d. 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 ID5597046615

PECOS Enrollment IDI20170814001442

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

University Of Maryland Community Medical Group, Inc.

2.9 mi

Family Medicine

821 N EUTAW ST
Baltimore, MD 21201

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

NPI 1477530624 (443) 552-2900

Emergency Medicine Associates PA PC

8.4 mi

Internal Medicine

5401 OLD COURT RD
Randallstown, MD 21133

Reassigned Medicare billing, Maryland enrollment
Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
729 clinicians in this Medicare group

NPI 1043175375 (330) 493-4443

Upper Chesapeake Critical Care Associates, LLC

24 mi

Critical Care Medicine

500 UPPER CHESAPEAKE DR
Bel Air, MD 21014

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

NPI 1538367545 (443) 643-1000

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 22

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 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.

110 services92 patients

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.

101 services84 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.

79 services53 patients

Biopsy of lobe of lung using an endoscope, 1 lobe 31628

A lung biopsy is a procedure where a small piece of lung tissue is taken for testing. An endoscope, a flexible tube with a light and camera, is used. It's inserted through the mouth or nose, down the windpipe, and into one lobe of the lung.

62 services62 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.

59 services59 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.

59 services59 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.

55 services55 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.

53 services47 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

48 services39 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes 31652

This procedure involves a special tube with a camera (endoscope) entering your lung airways. Guided by ultrasound, it collects samples from 1-2 lymph nodes. This helps doctors understand and diagnose potential issues in your lungs.

38 services38 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

33 services31 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

31 services16 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.

31 services31 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.

28 services28 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes 31653

This procedure involves using a special scope and ultrasound to examine your lung airways and sample tissue from 3 or more lymph nodes. It aids in diagnosing lung conditions and checking lymph node health.

24 services24 patients

Aspiration of subsequent secretions of lung airway using an endoscope during same hospital stay 31646

This procedure involves using a special tool called an endoscope to remove excess secretions from your lung airway. This can help improve breathing and prevent infections. It's performed during your hospital stay to ensure your comfort and safety.

22 services22 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.

16 services16 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.

16 services16 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

14 services14 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.

12 services12 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.

11 services11 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

University Of MD Baltimore Washington Medical Center

Acute Care Hospitals · Glen Burnie, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number210043

Location301 Hospital DriveGlen Burnie, MD 21061 · Anne Arundel County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21229 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

$139.05 typical visit price

range $60.73 – $183.44

Typical copayment $34.76 (range $15.18 – $45.86)

Most-billed visit code 99204

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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers45 claims45 services$4.82 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier36 claims36 services$73.49 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier36 claims36 services$36.26 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

4 suppliers15 claims1,800 services$0.08 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

5 suppliers17 claims17 services$19.80 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ST. AGNES HEALTHCARE, INC.

Anesthesiology

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (667) 234-3045

CATON EMERGENCY PHYSICIANS

Emergency Medicine

900 CATON AVE, MAILSTOP 134
BALTIMORE, MD 21229

Baltimore City (410) 368-2000

MARYLAND PROVO-I MEDICAL SERVICES, PC

Emergency Medicine

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (410) 368-2000

DR. MICHELLE C GARNER MD

Specialist

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (410) 368-2626

AMARACHI E NWANKPAH MD

Family Medicine

900 CATON AVE, MAILBOX #081
BALTIMORE, MD 21229

Baltimore City (443) 703-3200

SHAHA NABEEL

Internal Medicine (Hematology & Oncology)

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (667) 234-2149

REBECCA B CANDIDA CRNA

Nurse Anesthetist, Certified Registered

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (667) 234-3045

DR. CHANDRESH SHELAT MD

Emergency Medicine

900 CATON AVE
BALTIMORE, MD 21229

Baltimore City (410) 368-2000

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 Darwin Ashbaker's NPI number?

The NPI number for Darwin Ashbaker is 1114286127. It was assigned to this individual provider in the NPPES registry on May 10, 2012.

Where is Darwin Ashbaker located?

Darwin Ashbaker practices at 900 Caton Ave, Baltimore, MD 21229. The listed phone number is (410) 368-6000.

What is Darwin Ashbaker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Darwin Ashbaker enrolled in Medicare?

Yes. Darwin Ashbaker 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.

Which organizations bill Medicare for Darwin Ashbaker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Darwin Ashbaker reassigns Medicare benefits to 3 organizations: University Of Maryland Community Medical Group, Inc. (Baltimore, MD), Emergency Medicine Associates PA PC (Randallstown, MD) and Upper Chesapeake Critical Care Associates, LLC (Bel Air, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Darwin Ashbaker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Darwin Ashbaker affiliated with any hospitals?

According to CMS data, Darwin Ashbaker is affiliated with University Of MD Baltimore Washington Medical Center.

When was this NPI record last updated?

The NPPES record for Darwin Ashbaker was last updated on November 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.