Nathan Koranteng , ACNP-BC
Nurse Practitioner โข Baltimore, MD
22 S Greene St
Baltimore, MD 21201
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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Nathan Koranteng is listed in NPPES under Nurse Practitioner.
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NPI assigned on October 15, 2012; this date does not establish years in practice.
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Published CMS data list 11 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99291 โ Critical care: 11 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 20 Medicare Part D prescriptions, including refills, in 2014.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2014. Published rows only; this is not a quality measure.
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Published Part D records, 2014:
- Levofloxacin โ 20 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2014. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 95% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 137 clinicians with data). Median for this group: 246. Middle half: 74 to 482.
Fewer Medicare Part B services than 95% of clinicians listed under Nurse Practitioner in Maryland (2024, 499 clinicians with data). Median for this group: 392. Middle half: 149 to 946.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 39 in 2017 to 11 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2017โ2024.
Practice Location & Contact Primary Location
22 S Greene St
Baltimore, MD 21201
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 4 distinct additional practice-address records in Bel Air, MD; Havre De Grace, MD; Newark, DE and 1 more. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 3 distinct group names: Christiana Care Health Services Inc; Union Hospital Of Cecil County; University Of Maryland St Joseph Medical Group Llc. 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
2012
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
25 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $2,083 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.
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, 2024.
Paid by Medicare
About $1,672 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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, 2024.
30-day fills
20 standardized 30-day fills in 2014
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
$185 in 2014
The total cost of these prescriptions in 2014, 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, 2014.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
14 years (graduated 2012)
CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2012
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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)
Nathan Koranteng 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 Nathan Koranteng 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 services
Fewer Medicare Part B services than 95% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 137 clinicians with data). Median for this group: 246. Middle half: 74 to 482.
Fewer Medicare Part B services than 95% of 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
A lower Medicare-allowed amount than 90% of 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 90% 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
A lower Medicare payment amount than 90% of 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 90% 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
Comparisons use 2024 data. The latest CMS data for Nathan Koranteng are from 2014.
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.
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 decreased 72% from 39 in 2017 to 11 in 2024.
- 2017: 39
- 2018: 107
- 2019: 26
- 2023: 27
- 2024: 11
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Medicare-allowed amount
Medicare-allowed amount decreased 73% from $7,789 in 2017 to $2,083 in 2024.
- 2017: $7,789
- 2018: $19,531
- 2019: $4,996
- 2023: $5,104
- 2024: $2,083
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Paid by Medicare
Paid by Medicare decreased 73% from $6,206 in 2017 to $1,672 in 2024.
- 2017: $6,206
- 2018: $15,308
- 2019: $3,981
- 2023: $4,067
- 2024: $1,672
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 13% from 23 in 2013 to 20 in 2014.
- 2013: 23
- 2014: 20
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30-day fills
30-day fills decreased 18% from 25 in 2013 to 20 in 2014.
- 2013: 25
- 2014: 20
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Part D drug cost
Part D drug cost went from $150 in 2013 to $185 in 2014.
- 2013: $150
- 2014: $185
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2014), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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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99291
Critical care, first 30-74 minutes
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11 | 11 | $569.55 | $189.38 |
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 2014.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levofloxacin | Levofloxacin | 20 | 173 | $184.73 | 20 |
Source: CMS Part D by Provider and Drug, 2014; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-09-15NUCC Taxonomy Code: 363L00000X
(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.
NUCC Taxonomy Code: 163W00000X
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.
NUCC Taxonomy Code: 363LA2100X
NUCC Taxonomy Code: 363L00000X
(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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20250929002247
DE
1153563184
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
Union Hospital Of Cecil County
106 Bow St, Elkton, MD 219215544
Phone: 4103984000
Christiana Care Health Services Inc
4745 Ogletown Stanton Rd, Newark, DE 197132074
Phone: 3026237600
University Of Maryland St Joseph Medical Group Llc
7601 Osler Dr, Towson, MD 212047700
Phone: 4103374877
Secondary Practice Locations
4755 Ogletown Stanton Rd Fl 3
Newark, DE 197182200
Phone: 3027333475
7601 Osler Dr
Towson, MD 212047700
Phone: 4103371804
501 S Union Ave
Havre De Grace, MD 210783409
Phone: 4438435000
500 Upper Chesapeake Dr
Bel Air, MD 210144324
Phone: 4436431000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Surgical
Physician Assistant
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered Nurse (license number reported to NPPES: MD R235680)
Registered at 22 S GREENE ST, BALTIMORE, MD 21201 (Tel: 4103288040)
Registered at PO BOX 64442, BALTIMORE, MD 212644442 (Tel: 4103288040)
Nurse Practitioner (license number reported to NPPES: MD R235680)
NPI status registered as active in NPPES database
Registered at 500 UPPER CHESAPEAKE DR, BEL AIR, MD 210144324 (Tel: 4436431000)
Registered at 500 UPPER CHESAPEAKE DR, BEL AIR, MD 210144324 (Tel: (443) 643-1000)
Recorded as NATHAN KORANTENG, ACNP-BC
Nurse Practitioner (license number reported to NPPES: MD AC001872)
NPI status registered as active in NPPES database
Registered at 800 E DAWSON ST, TYLER, TX 757012036 (Tel: 9035251914)
Registered at PO BOX 846098, DALLAS, TX 752846098 (Tel: 9033246450)
Recorded as NATHAN KORANTENG, ACNP-BC
Nurse Practitioner (license number reported to NPPES: TX AP123534)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Baltimore
- Maura Belden, CRNP
- Rachel Hausladen, CRNP
- Kimela Ferguson, NP-C
- Denese Gaughan, CRNP
- Michelle Turner, CRNP
- Shannon Carroll, NP-C
Mailing Address
Po Box 64442
Baltimore, MD 212644442
Phone: 4103288040