Are you Robert S. Hagan, M.D., PhD? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- Johns Hopkins Medicine, 600 N. Wolfe St., Baltimore, MD 21287
About Dr. Hagan
Based in Baltimore, MD, Robert S. Hagan, M.D., PhD is listed in the NPI registry under pulmonary disease. Robert graduated from Harvard Medical School in 2007. Robert is also listed as specializing in internal medicine. According to Medicare claims data, Robert cared for 81 Medicare patients across 180 services. The services billed most often include critical care, first 30-74 minutes, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient'. NPI 1265635858 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 955-7963
- Email not available
Practice Locations
JOHNS HOPKINS MEDICINE 600 N. WOLFE ST.
Baltimore, MD 21287
Conditions Commonly Evaluated or Treated
Within Pulmonary Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
Infections
- Community-acquired pneumonia
- Fungal lung infection
- Legionnaires' Disease
- Lung abscess
- NTM lung infection
- Severe Pneumonia
- Tuberculosis
- Valley fever
- Walking Pneumonia in Children
- Whooping Cough
Inflammatory conditions
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Most searched procedures
Airway care
Airway management
Biopsies
Biopsies & diagnostics
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Pleural procedures
- Chest tube insertion
- Draining lung fluid
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep medicine
Sleep treatments
Specialist evaluations
Specialized testing
Treatments
Procedures Most Often Billed to Medicare
180 services · 81 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
142 | More often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
22 | Less often than most peers in Pulmonary Disease |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
16 | Less often than most peers in Pulmonary Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other lung specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other lung specialists in Baltimore 8
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at Harvard Medical School 7
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Robert S. Hagan, M.D. specialize in?
Robert S. Hagan, M.D. is a lung specialist in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where is Robert S. Hagan, M.D. located?
Robert S. Hagan, M.D. is listed at Johns Hopkins Medicine 600 N. Wolfe St., Baltimore, MD 21287. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Robert S. Hagan, M.D.'s phone number?
The number on file is (410) 955-7963. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Robert S. Hagan, M.D.'s NPI number?
Robert S. Hagan, M.D.'s National Provider Identifier is 1265635858. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Robert S. Hagan, M.D. train?
Robert S. Hagan, M.D. attended Harvard Medical School, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Robert S. Hagan, M.D. been practicing?
Robert S. Hagan, M.D. has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What does Robert S. Hagan, M.D. do most often?
According to Medicare billing data, Robert S. Hagan, M.D. the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Robert S. Hagan, M.D. confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Robert S. Hagan, M.D.. If this is you, claiming it is free.
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