Dr. Katherine Allen , MD
Internal Medicine โข Baltimore, MD
600 N Wolfe St
Baltimore, MD 212870005
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Katherine Allen is listed in NPPES under Internal Medicine.
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NPI assigned on April 9, 2013; this date does not establish years in practice.
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Published CMS data list 302 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 242 service units.
- 99223 โ Initial hospital care with moderate level of medical decision making: 48 service units.
- 99239 โ Hospital discharge day management: 12 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 58 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Gabapentin โ 13 prescription fills, including refills.
- Tamsulosin Hcl โ 12 prescription fills, including refills.
- Baclofen โ 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 318 in 2017 to 302 in 2019.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2017โ2019.
Practice Location & Contact Primary Location
600 N Wolfe St
Baltimore, MD 212870005
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $38,150 in 2019
The total amount Medicare approved for these services in 2019. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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, 2019.
Paid by Medicare
About $29,966 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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, 2019.
30-day fills
58 standardized 30-day fills in 2020
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
$1,975 in 2020
The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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, 2020.
Open Payments general payments, program year 2023
All general payments: $289.77 across 4 records.
By nature of payment
- Food and Beverage: $289.77 across 4 records.
Reporting-company totals
- Baxter Healthcare: $289.77 across 4 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
NPI first issued
2013
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Allen 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.
Can order Medicare-covered services
CMS lists Dr. Allen 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Baltimore and Maryland
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Allen are from 2019.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Allen are from 2020.
1,278 active clinicians are listed under Internal Medicine with a practice address in Baltimore, MD (3,909 in Maryland).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Baltimore
22.9% of these 1,278 clinicians have the CMS telehealth indicator.
45.7% of these 1,278 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 318 in 2017 and 302 in 2019.
- 2017: 318
- 2018: 188
- 2019: 302
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $37,031 in 2017 and $38,150 in 2019.
- 2017: $37,031
- 2018: $23,480
- 2019: $38,150
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Paid by Medicare
Paid by Medicare varied from year to year: $27,810 in 2017 and $29,966 in 2019.
- 2017: $27,810
- 2018: $18,023
- 2019: $29,966
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 34% from 88 in 2014 to 58 in 2020.
- 2014: 88
- 2015: 238
- 2016: 223
- 2020: 58
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30-day fills
30-day fills decreased 34% from 88 in 2014 to 58 in 2020.
- 2014: 88
- 2015: 247
- 2016: 246
- 2020: 58
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Part D drug cost
Part D drug cost went from $595 in 2014 to $1,975 in 2020.
- 2014: $595
- 2015: $1,649
- 2016: $1,940
- 2020: $1,975
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2020), CMS Open Payments (2023), 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
Program year 2023 (payments made January 1 โ December 31, 2023): fewer than 11 records totaling $289.77.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Baxter Healthcare |
Food and Beverage
In-kind items and services
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PREVELEAK | General | $175.36 |
| Baxter Healthcare |
Food and Beverage
In-kind items and services
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PREVELEAK | General | $55.94 |
| Baxter Healthcare |
Food and Beverage
In-kind items and services
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PREVELEAK | General | $34.70 |
| Baxter Healthcare |
Food and Beverage
In-kind items and services
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FLOSEAL | General | $23.77 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2018 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, 2017โ2019; 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 |
|---|---|---|---|---|
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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242 | 100 | $254.68 | $109.66 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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48 | 48 | $495.25 | $213.60 |
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99239
Hospital discharge day management, more than 30 minutes
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12 | 12 | $265.50 | $113.27 |
Source: CMS Part B by Provider and Service, 2019; 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 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 13 | 334 | $222.20 | โ |
| Tamsulosin Hcl | Tamsulosin Hcl | 12 | 294 | $288.02 | โ |
| Baclofen | Baclofen | 11 | 273 | $1,143.69 | โ |
| Metformin Hcl | Metformin Hcl | 11 | 294 | $62.85 | โ |
| Pravastatin Sodium | Pravastatin Sodium | 11 | 294 | $257.85 | โ |
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20160921000333
DC
9133348857
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated April 09, 2013.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Baltimore
- Dr. Mariah Robertson, MD
- Dr. Uzoamaka Ofodu, MD
- Dr. Sahithi Reddy Kalluri, MBBS
- Dr. Farhan Qureshi, MD
- Dr. David Scharff, MD
- Dr. Seyed Ebrahim Kassaian, MD
Mailing Address
600 N Wolfe St
Baltimore, MD 212870005
Phone: 4109557911