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John Allen in Baltimore, Maryland

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John Allen has Internal Medicine as his primary medical specialty. Their primary office is: 22 S Greene St in Baltimore, Maryland.

They're a part of the: University Of Maryland Physicians P.a. medical group which has around 313 members. You can call their office at 410-328-8040 to schedule an appointment. They also accept the Medicare-approved amount as payment in full. They attended University Of Maryland School Of Medicine and graduated in 2014 (around 10 years of experience). They are listed as doing telehealth appointments.


John Charles Allen Office Phone and Directions

John Allen
University Of Maryland Physicians P.a.
22 S Greene St
Baltimore, Maryland 21201
410-328-8040


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Phone: 410-328-8040


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Healthcare Info for John Allen

Medical School: University Of Maryland School Of Medicine
Graduation Year: 2014
The Primary Medical Specialty for John Allen is listed as: Internal Medicine
Approximate Years of Experience: 10
PAC (PECOS ID)#: 8022316231
NPI #: 1023436839
NPI Created On: 03/31/2014
NPI Last Updated Listed as: 11/30/2021
Primary Taxonomy Code: 207R00000X
License Number:
D83158
Listed Gender: Male

Insurance, Services, Charges


Forms of insurance accepted by include, but are not limited to:

  • CareFirst BlueChoice, Inc.
  • Humana
  • Group Hospitalization and Medical Services Inc.
  • Geisinger Health Plan
  • Geisinger Quality Options
  • Medicare

They are listed as accepting new patients.

Languages spoken by staff include: English.


Services and Procedures include:

  1. Vaccine for influenza for injection into muscle
  2. Vaccine for influenza for administration into muscle, 0.5 ml dosage
  3. Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older
  4. Established patient office or other outpatient visit, typically 15 minutes
  5. Established patient office or other outpatient visit, typically 15 minutes
  6. Established patient office or other outpatient, visit typically 25 minutes
  7. Established patient office or other outpatient, visit typically 25 minutes
  8. Initial hospital inpatient care, typically 70 minutes per day
  9. Subsequent hospital inpatient care, typically 25 minutes per day
  10. Subsequent hospital inpatient care, typically 35 minutes per day
  11. Physician telephone patient service, 21-30 minutes of medical discussion
  12. Administration of influenza virus vaccine
  13. Administration of pneumococcal vaccine
  14. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit

Internal Medicine Professionals in Baltimore

5601 Loch Raven Blvd
Baltimore, MD
Johns Hopkins University

600 N Wolfe St
Baltimore, MD
Johns Hopkins University

22 S Greene St
Baltimore, MD
University Of Maryland Physicians P.a.

7602 Belair Rd
Baltimore, MD
Maryland Family Care Inc

301 Saint Paul St
Baltimore, MD
St Paul Place Specialists Inc

6701 N Charles St
Baltimore, MD
Kaiser Foundation Health Of The Plan Mid-atlantic States,inc

Providers in University Of Maryland Physicians P.a.

1.Alina Aasim

827 Linden Ave
Baltimore Md 21201-4606
University Of Maryland Physicians P.a.
Endocrinology

2.Moncheri Adebayo

22 S Greene St
Baltimore Md 21201-1544
University Of Maryland Physicians P.a.
Nurse Practitioner

3.Elham Afshar

22 S Green St
Baltimore Md 21201-1544
University Of Maryland Physicians P.a.
Internal Medicine

4.Neil Agarwal

22 S Greene St
Baltimore Md 21201-1544
University Of Maryland Physicians P.a.
Nephrology

5.Negin Ahadi

22 S Green St
Baltimore Md 21201-1544
University Of Maryland Physicians P.a.
Internal Medicine

6.Hiba Ahmed

22 S Greene St
Baltimore Md 21201-1544
University Of Maryland Physicians P.a.
Nephrology

View all 313 members of University Of Maryland Physicians P.a. medical group