Mark J Rockwell , PA-C
Physician Assistant • Lock Haven, PA
560 Mcelhattan Dr.
Lock Haven, PA 17748
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 October 2, 2006; this date does not establish years in practice.
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Published CMS data list 142 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 125 service units.
- 81003 — Automated urinalysis test: 17 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 · Guide: How to read Medicare Part B data
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Published CMS data list 212 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:
- Prednisone — 65 prescription fills, including refills.
- Doxycycline Hyclate — 51 prescription fills, including refills.
- Cephalexin — 23 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 8 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 65% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 20 clinicians with data). Median for this group: 249. Middle half: 132 to 500.
Close to the middle for Medicare Part B services among clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: 174. Middle half: 68 to 404.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 204 in 2020 to 142 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
560 Mcelhattan Dr.
Lock Haven, PA 17748
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Geisinger Clinic; Geisinger-Hm Joint Venture 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
2006
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
133 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 – by Provider, 2024.
Medicare-allowed amount
About $9,171 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 – by Provider and Service, 2024.
Paid by Medicare
About $6,394 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 – by Provider and Service, 2024.
30-day fills
212 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
$1,216 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $24.84 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 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
2006
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, “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)
Mark Rockwell 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 Mark Rockwell 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 Lock Haven and Pennsylvania
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 65% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 20 clinicians with data). Median for this group: 249. Middle half: 132 to 500.
Close to the middle for clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: 174. Middle half: 68 to 404.
Medicare-allowed amount
A lower Medicare-allowed amount than 75% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 20 clinicians with data). Median for this group: $16,016. Middle half: $9,184 to $27,586.
A lower Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: $13,809. Middle half: $5,386 to $28,936.
Paid by Medicare
A lower Medicare payment amount than 70% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 20 clinicians with data). Median for this group: $10,617. Middle half: $6,323 to $18,814.
A lower Medicare payment amount than 60% of clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: $10,019. Middle half: $3,950 to $20,945.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 22 clinicians with data). Median for this group: 758. Middle half: 468 to 3,050.
Close to the middle for clinicians listed under Physician Assistant in Pennsylvania (2024, 4,373 clinicians with data). Median for this group: 235. Middle half: 69 to 862.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Physician Assistant in Lock Haven, PA (2024, 22 clinicians with data). Median for this group: $36,866. Middle half: $4,405 to $191,373.
A lower Part D drug cost than 60% of clinicians listed under Physician Assistant in Pennsylvania (2024, 4,373 clinicians with data). Median for this group: $3,681. Middle half: $519 to $94,109.
25 active clinicians are listed under Physician Assistant with a practice address in Lock Haven, PA (8,021 in Pennsylvania).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lock Haven
20% of these 25 clinicians have the CMS telehealth indicator.
80% of these 25 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 30% from 204 in 2020 to 142 in 2024.
- 2020: 204
- 2021: 278
- 2022: 279
- 2023: 187
- 2024: 142
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Medicare-allowed amount
Medicare-allowed amount decreased 47% from $17,434 in 2020 to $9,171 in 2024.
- 2020: $17,434
- 2021: $19,265
- 2022: $19,612
- 2023: $12,751
- 2024: $9,171
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Paid by Medicare
Paid by Medicare decreased 35% from $9,861 in 2020 to $6,394 in 2024.
- 2020: $9,861
- 2021: $12,803
- 2022: $11,553
- 2023: $7,805
- 2024: $6,394
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 16% from 251 in 2020 to 212 in 2024.
- 2020: 251
- 2021: 449
- 2022: 627
- 2023: 326
- 2024: 212
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30-day fills
30-day fills decreased 16% from 251 in 2020 to 212 in 2024.
- 2020: 251
- 2021: 449
- 2022: 627
- 2023: 326
- 2024: 212
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Part D drug cost
Part D drug cost decreased 26% from $1,633 in 2020 to $1,216 in 2024.
- 2020: $1,633
- 2021: $2,658
- 2022: $3,978
- 2023: $2,204
- 2024: $1,216
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
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 · 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 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $24.84.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| WERFEN USA LLC |
Food and Beverage
Cash or cash equivalent
|
ROTEM | General | $24.84 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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125 | 121 | $214.88 | $73.07 |
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81003
Automated urinalysis test
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17 | 17 | $68.00 | $2.20 |
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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 65 | 382 | $225.04 | 64 |
| Doxycycline Hyclate | Doxycycline Hyclate | 51 | 366 | $327.97 | 51 |
| Cephalexin | Cephalexin | 23 | 201 | $133.95 | 22 |
| Amoxicillin | Amoxicillin | 21 | 207 | $101.75 | 21 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 18 | 180 | $229.41 | 18 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 12 | 84 | $119.28 | 12 |
| Fluconazole | Fluconazole | 11 | 35 | $34.74 | — |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 11 | 99 | $43.80 | 11 |
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: 2020-08-12NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20061218000177
PA
4486653680
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
Geisinger Clinic
1630 N Atherton St, State College, PA 168031416
Phone: 8142381279
Geisinger Clinic
175 Northumberland St, Danville, PA 178211508
Phone: 5702844575
Geisinger-Hm Joint Venture Llc
68 Spring St, Lock Haven, PA 177451911
Phone: 8002304565
Geisinger Clinic
10990 State Route 61, Mount Carmel, PA 178512575
Phone: 5705549260
Geisinger Clinic
226 Buckaroo Lane, Bellefonte, PA 168239120
Phone: 8143533519
Geisinger Clinic
10990 State Route 61 736344, Mount Carmel, PA 178512575
Phone: 5703394513
Geisinger-Hm Joint Venture Llc
1824 E 3rd St, Williamsport, PA 177013914
Phone: 5706012200
Geisinger-Hm Joint Venture Llc
10 Choate Cir, Montoursville, PA 177549791
Phone: 5703685566
Geisinger Clinic
100 N Academy Ave, Danville, PA 178229800
Phone: 5702716144
Geisinger Clinic
240 Mall Blvd, Bloomsburg, PA 178158389
Phone: 5704165435
Geisinger Clinic
65 Briar Creek Plz, Berwick, PA 186034100
Phone: 5708025590
Geisinger Clinic
224 N Logan Blvd, Burnham, PA 170091850
Phone: 7172420196
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 560 MCELHATTAN DR., LOCK HAVEN, PA 17748 (Tel: 5702634042)
Registered at 100 N ACADEMY AVE, DANVILLE, PA 178224903 (Tel: 5702716144)
NPI status registered as active in NPPES database
Registered at 1414 9TH AVE, STATION MEDICAL CENTER, ALTOONA, PA 166022415 (Tel: 8149461655)
Registered at 1414 9TH AVE, STATION MEDICAL CENTER, ALTOONA, PA 166022415 (Tel: 8149461655)
Recorded as MARK ROCKWELL, PA-C
Physician Assistant (license number reported to NPPES: PA MA052757)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Lock Haven
- Chelsi Serafini, PA-C
- Ashley Foltz, PA-C
- John Carroll, PA-C
- Karinne Santonico
- Hailey Schwartzmier, PA-C
- Kristi Hurd, PA-C
Mailing Address
100 N Academy Ave
Danville, PA 178224903
Phone: 5702716144