Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Allison Pullen , CRNP

Nurse Practitioner โ€ข Baltimore, MD

Active NPI 1477915742 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

22 S Greene St
Baltimore, MD 212011544

Call 4103285780 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

22 S Greene St

Baltimore, MD 212011544

Telephone 4103285780
Fax 4103288315
Organization at the Same NPPES Address or Phone

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: University Of Maryland Physicians Pa. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2015

Medicare patients

148 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $17,478 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $12,500 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

1,214 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$378,077 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $2,205.29 across 63 records.

By nature of payment

  • Food and Beverage: $2,205.29 across 63 records.

Reporting-company totals (3 largest of 12)

  • Madrigal Pharmaceuticals: $545.66 across 16 records.
  • Ipsen Biopharmaceuticals, Inc: $375.75 across 11 records.
  • Gilead Sciences, Inc.: $296.64 across 11 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

11 years (graduated 2015)

CMS Doctors and Clinicians data list 2015 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Allison Pullen has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Allison Pullen as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Baltimore and Maryland

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 137 clinicians with data). Median for this group: 246. Middle half: 74 to 482.

Close to the middle for clinicians listed under Nurse Practitioner in Maryland (2024, 499 clinicians with data). Median for this group: 392. Middle half: 149 to 946.

Medicare-allowed amount

Close to the middle for clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 137 clinicians with data). Median for this group: $21,433. Middle half: $6,469 to $43,184.

A lower Medicare-allowed amount than 65% of clinicians listed under Nurse Practitioner in Maryland (2024, 499 clinicians with data). Median for this group: $31,561. Middle half: $12,296 to $68,157.

Paid by Medicare

Close to the middle for clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 137 clinicians with data). Median for this group: $15,267. Middle half: $4,873 to $33,428.

A lower Medicare payment amount than 65% of clinicians listed under Nurse Practitioner in Maryland (2024, 499 clinicians with data). Median for this group: $24,015. Middle half: $9,491 to $51,591.

Medicare Part D prescriptions

More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 135 clinicians with data). Median for this group: 276. Middle half: 67 to 808.

More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Maryland (2024, 503 clinicians with data). Median for this group: 319. Middle half: 87 to 1,038.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 135 clinicians with data). Median for this group: $33,962. Middle half: $1,941 to $205,634.

A higher Part D drug cost than 85% of clinicians listed under Nurse Practitioner in Maryland (2024, 503 clinicians with data). Median for this group: $27,545. Middle half: $2,159 to $149,703.

366 active clinicians are listed under Nurse Practitioner with a practice address in Baltimore, MD (1,248 in Maryland).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Baltimore

16.4% of these 366 clinicians have the CMS telehealth indicator.

35% of these 366 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 63 records totaling $2,205.29.

Manufacturer Payment Nature Product Type Amount ($)
Madrigal Pharmaceuticals
Food and Beverage
In-kind items and services
REZDIFFRA General $145.79
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $143.00
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
Livdelzi General $131.36
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $128.62
Madrigal Pharmaceuticals
Food and Beverage
In-kind items and services
REZDIFFRA General $122.31
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $121.84
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $93.19
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $65.43
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $55.08
Madrigal Pharmaceuticals
Food and Beverage
In-kind items and services
REZDIFFRA General $43.85
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $36.45
Madrigal Pharmaceuticals
Food and Beverage
In-kind items and services
REZDIFFRA General $36.05
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $34.90
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $33.99
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $33.67
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $32.60
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $32.45
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $31.44
Eli Lilly and Company
Food and Beverage
In-kind items and services
OMVOH General $31.40
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $30.28
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $29.40
Madrigal Pharmaceuticals
Food and Beverage
In-kind items and services
REZDIFFRA General $28.48
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $28.44
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $28.38
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $27.74

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
133 112 $205.00 $84.35
G2211 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's
125 109 $30.00 $14.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
22 21 $205.00 $113.54
G2211 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's
21 19 $30.00 $14.33
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
14 14 $280.00 $119.58

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Tacrolimus Tacrolimus 143 9,649 $31,152.15 45
Entecavir Entecavir 61 3,030 $11,402.22 12
Furosemide Furosemide 51 3,795 $218.82 23
Xifaxan Rifaximin 51 1,769 $185,348.03 14
Mycophenolic Acid Mycophenolate Sodium 48 2,688 $18,126.21 13
Lactulose Lactulose 37 1,194 $928.62 18
Everolimus Everolimus 26 1,935 $83,919.76 โ€”
Ursodiol Ursodiol 25 1,718 $3,012.66 12
Pantoprazole Sodium Pantoprazole Sodium 22 960 $112.06 โ€”
Spironolactone Spironolactone 20 1,740 $408.14 12
Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates 18 26 $902.92 18
Carvedilol Carvedilol 16 1,375 $85.70 โ€”
Azathioprine Azathioprine 16 1,320 $3,779.06 โ€”
Vemlidy Tenofovir Alafenamide 15 510 $23,341.63 โ€”
Sirolimus Sirolimus 13 1,170 $14,180.07 โ€”
Famotidine Famotidine 12 480 $49.57 โ€”
Hydroxyzine Hcl Hydroxyzine Hcl 12 192 $254.15 โ€”
Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl 12 12 $158.68 12
Omeprazole Omeprazole 11 960 $39.98 โ€”
Mycophenolate Mofetil Mycophenolate Mofetil 11 630 $656.19 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES MD R185295

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Maryland Board of Physicians.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20241021002604

Enrollment State Jurisdiction

DC

PECOS Control ID

1557637212

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

University Of Maryland Physicians Pa

22 S Green St, Baltimore, MD 212011544

Phone: 4103288040

University Of Maryland Physicians Pa

9300 Lottsford Rd, Largo, MD 207744886

Phone: 2407137648

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

22 listed
Dr. Abdulhameed Al-Sabban , MBBS

Internal Medicine - Gastroenterology

NPI 1255624656

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Dr. Peter Darwin , MD

Internal Medicine - Gastroenterology

NPI 1649231481

Doctor of Medicine (M.D.)

Dr. Mohammed El-Dallal , MD

Internal Medicine - Gastroenterology

NPI 1609216514

Doctor of Medicine (M.D.)

Dr. George Fantry , MD

Internal Medicine - Gastroenterology

NPI 1043272610

Doctor of Medicine (M.D.)

Yousef Fazel

Internal Medicine - Gastroenterology

NPI 1881252955
Dr. Eric Goldberg , MD

Internal Medicine - Gastroenterology

NPI 1083664312

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

11 Historical Events
โœ…
NPI Profile Active September 21, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location September 21, 2017

Registered at 22 S GREENE ST, BALTIMORE, MD 212011544 (Tel: 4103285780)

๐Ÿ“
Updated Business Mailing Address September 21, 2017

Registered at PO BOX 64442, BALTIMORE, MD 212644442 (Tel: (410) 328-8040)

๐Ÿ‘ค
Provider Name / Credentials Updated September 21, 2017

Recorded as ALLISON PULLEN, CRNP

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 21, 2017

Nurse Practitioner (license number reported to NPPES: MD R185295)

โœ…
NPI Profile Active March 24, 2016

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) March 24, 2016

Registered at 7120 MINSTREL WAY, SUITE 100, COLUMBIA, MD 210455248 (Tel: 4102906677)

๐Ÿ“
Business Mailing Address (Initial Record) March 24, 2016

Registered at 4805 PORTSMOUTH RD, ELLICOTT CITY, MD 210426283 (Tel: 4109135773)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) March 24, 2016

Recorded as ALLISON PULLEN, CRNP

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 24, 2016

Nurse Practitioner (license number reported to NPPES: MD R185295)

๐ŸŸข
Initial NPI Registration & Enumeration March 24, 2016

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1477915742
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 24, 2016
Last Update: July 21, 2022
Sole Proprietor: No

Other Nurse Practitioners in Baltimore

All Nurse Practitioners in Baltimore

Mailing Address

Po Box 64442

Baltimore, MD 212644442

Phone: 4103288040

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.