Peter Baker Cornell , CRNP
Nurse Practitioner • Baltimore, MD
600 N Wolfe Street Halsted 600, Johns Hopkins Hospital Department Of Surgery
Baltimore, MD 212870001
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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NPI assigned on July 5, 2007; this date does not establish years in practice.
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Published CMS data list 120 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Oxycodone Hcl — 33 prescription fills, including refills.
- Pantoprazole Sodium — 25 prescription fills, including refills.
- Creon (Lipase/Protease/Amylase) — 19 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 135 clinicians with data). Median for this group: 276. Middle half: 67 to 808.
Fewer Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Maryland (2024, 503 clinicians with data). Median for this group: 319. Middle half: 87 to 1,038.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 83 in 2020 to 120 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
600 N Wolfe Street Halsted 600
Johns Hopkins Hospital Department Of Surgery
Baltimore, MD 212870001
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
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
160 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
$59,363 in 2024
The total cost of these prescriptions in 2024, 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2024
All general payments: $152.85 across 5 records.
By nature of payment
- Food and Beverage: $152.85 across 5 records.
Reporting-company totals
- ABBVIE INC.: $152.85 across 5 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 2024 (published June 30, 2026).
NPI first issued
2007
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, “Does your provider accept Medicare as full payment?”
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)
Peter Cornell 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 Peter Cornell 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 D prescriptions
Fewer Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Baltimore, MD (2024, 135 clinicians with data). Median for this group: 276. Middle half: 67 to 808.
Fewer Part D prescriptions than 65% 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
Close to the middle for 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 60% 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.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 45% from 83 in 2020 to 120 in 2024.
- 2020: 83
- 2021: 125
- 2022: 72
- 2023: 58
- 2024: 120
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30-day fills
30-day fills increased 46% from 109 in 2020 to 160 in 2024.
- 2020: 109
- 2021: 181
- 2022: 105
- 2023: 74
- 2024: 160
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Part D drug cost
Part D drug cost increased 99% from $29,841 in 2020 to $59,363 in 2024.
- 2020: $29,841
- 2021: $37,341
- 2022: $49,853
- 2023: $44,241
- 2024: $59,363
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $22.66 in 2021 to $152.85 in 2024.
- 2021: $22.66
- 2022: $48.54
- 2024: $152.85
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $152.85.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
CREON | General | $92.19 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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CREON | General | $21.81 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
CREON | General | $21.76 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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CREON | General | $14.78 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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CREON | General | $2.31 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 33 | 101 | $128.91 | 32 |
| Pantoprazole Sodium | Pantoprazole Sodium | 25 | 1,770 | $316.71 | 22 |
| Creon | Lipase/Protease/Amylase | 19 | 696 | $58,800.30 | 12 |
| Gabapentin | Gabapentin | 17 | 85 | $11.03 | 17 |
| Tramadol Hcl | Tramadol Hcl | 13 | 26 | $7.69 | 13 |
| Ondansetron Odt | Ondansetron | 13 | 64 | $98.38 | 13 |
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
Self-certified to NPPES: 2026-03-02NUCC 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 PECOSORDER AND REFERRING ONLY - NURSE PRACTITIONER
I20110706000136
MD
6507920816
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Nurse Practitioner (license number reported to NPPES: MD R162453)
Registered at 6201 GREENLEIGH AVE FL 2, MIDDLE RIVER, MD 212202004
Student in an Organized Health Care Education/Training Program
NPI status registered as active in NPPES database
Registered at 600 N WOLFE STREET HALSTED 600, JOHNS HOPKINS HOSPITAL DEPARTMENT OF SURGERY, BALTIMORE, MD 212870001 (Tel: 4436043158)
Registered at 600 N WOLFE STREET HALSTED 600, JOHNS HOPKINS HOSPITAL DEPARTMENT OF SURGERY, BALTIMORE, MD 212870001 (Tel: 4436043158)
Recorded as PETER CORNELL, CRNP
Nurse Practitioner (license number reported to NPPES: MD R162453)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Baltimore
- Benedicto Ramos, CRNP
- Emily Perry, FNP-BC
- Stephanie Horrocks, CRNP
- Stella Okoye
- Tonya Lewis, NP
- Seth Bodani, AGACNP-BC
Mailing Address
6201 Greenleigh Ave Fl 2
Middle River, MD 212202004