Karl Martin Hirschegger , PA-C
Physician Assistant โข Northampton, MA
30 Locust St
Northampton, MA 010602093
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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Karl Hirschegger is listed in NPPES under Physician Assistant.
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NPI assigned on July 1, 2015; this date does not establish years in practice.
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Published CMS data list 254 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:
- 99292 โ Critical care: 58 service units.
- 99291 โ Critical care: 41 service units.
- 71046 โ X-ray of chest, 2 views: 28 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 all 10 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 62 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Albuterol Sulfate Hfa (Albuterol Sulfate) โ 20 prescription fills, including refills.
- Cephalexin โ 16 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 14 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Physician Assistant in Northampton, MA (2024, 13 clinicians with data). Median for this group: 254. Middle half: 178 to 374.
Close to the middle for Medicare Part B services among clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: 222. Middle half: 79 to 552.
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 198 in 2020 to 254 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
30 Locust St
Northampton, MA 010602093
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 1 group name: Mass General Brigham Medical Group Western Massachusetts Inc. 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
2015
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
190 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 $26,484 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 $19,643 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
62 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
$651 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
11 years (graduated 2015)
CMS Doctors and Clinicians data list 2015 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
2015
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)
Karl Hirschegger 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 Karl Hirschegger 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 Northampton and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Physician Assistant in Northampton, MA (2024, 13 clinicians with data). Median for this group: 254. Middle half: 178 to 374.
Close to the middle for clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: 222. Middle half: 79 to 552.
Medicare-allowed amount
Close to the middle for clinicians listed under Physician Assistant in Northampton, MA (2024, 13 clinicians with data). Median for this group: $30,225. Middle half: $20,171 to $43,792.
A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $19,073. Middle half: $6,686 to $39,911.
Paid by Medicare
Close to the middle for clinicians listed under Physician Assistant in Northampton, MA (2024, 13 clinicians with data). Median for this group: $22,362. Middle half: $13,955 to $32,512.
A higher Medicare payment amount than 60% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $14,188. Middle half: $5,025 to $29,930.
Medicare Part D prescriptions
Fewer Part D prescriptions than 70% of clinicians listed under Physician Assistant in Northampton, MA (2024, 15 clinicians with data). Median for this group: 94. Middle half: 49 to 188.
Fewer Part D prescriptions than 70% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: 175. Middle half: 52 to 564.
Part D drug cost
A lower Part D drug cost than 60% of clinicians listed under Physician Assistant in Northampton, MA (2024, 15 clinicians with data). Median for this group: $799. Middle half: $283 to $11,598.
A lower Part D drug cost than 70% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: $2,484. Middle half: $458 to $50,541.
28 active clinicians are listed under Physician Assistant with a practice address in Northampton, MA (4,715 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Northampton
0% of these 28 clinicians have the CMS telehealth indicator.
32.1% of these 28 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 increased 28% from 198 in 2020 to 254 in 2024.
- 2020: 198
- 2021: 161
- 2022: 203
- 2023: 324
- 2024: 254
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $24,828 in 2020 and $26,484 in 2024.
- 2020: $24,828
- 2021: $21,842
- 2022: $24,995
- 2023: $35,441
- 2024: $26,484
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Paid by Medicare
Paid by Medicare varied from year to year: $20,016 in 2020 and $19,643 in 2024.
- 2020: $20,016
- 2021: $17,340
- 2022: $19,934
- 2023: $28,288
- 2024: $19,643
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 55% from 137 in 2016 to 62 in 2024.
- 2016: 137
- 2017: 51
- 2018: 52
- 2023: 59
- 2024: 62
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30-day fills
30-day fills decreased 55% from 137 in 2016 to 62 in 2024.
- 2016: 137
- 2017: 51
- 2018: 52
- 2023: 59
- 2024: 62
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Part D drug cost
Part D drug cost went from $824 in 2016 to $651 in 2024.
- 2016: $824
- 2017: $372
- 2018: $426
- 2023: $690
- 2024: $651
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), 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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99292
Critical care, each additional 30 minutes
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58 | 35 | $284.28 | $89.33 |
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99291
Critical care, first 30-74 minutes
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41 | 40 | $651.63 | $177.51 |
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71046
X-ray of chest, 2 views
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28 | 17 | $32.79 | $19.05 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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27 | 27 | $206.00 | $107.94 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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25 | 25 | $268.00 | $143.34 |
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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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21 | 21 | $459.00 | $145.28 |
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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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16 | 16 | $146.00 | $78.40 |
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36620
Insertion of artery tube for blood sampling or infusion through skin
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14 | 13 | $129.00 | $36.43 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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13 | 13 | $312.00 | $109.74 |
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99238
Hospital discharge day management, 30 minutes or less
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11 | 11 | $166.00 | $68.34 |
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 |
|---|---|---|---|---|---|
| Albuterol Sulfate Hfa | Albuterol Sulfate | 20 | 368 | $422.76 | 20 |
| Cephalexin | Cephalexin | 16 | 118 | $116.00 | 16 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 14 | 94 | $75.12 | 14 |
| Azithromycin | Azithromycin | 12 | 60 | $37.48 | 12 |
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: 2023-01-12NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20151027000361
MA
3072822485
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
Mass General Brigham Medical Group Western Massachusetts Inc
30 Locust St, Northampton, MA 010602052
Phone: 4135822441
Mass General Brigham Medical Group Western Massachusetts Inc
10 Denniston Pl, Northampton, MA 010602052
Phone: 4135869866
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Emergency Medicine
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Psychiatric/Mental Health
Psychiatric-Mental Health Nurse Practitioner (Board Certified)
Anesthesiology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Acute Care
Advanced Practice Registered Nurse
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 30 LOCUST ST, NORTHAMPTON, MA 010602093 (Tel: 4135822000)
Registered at 30 LOCUST ST, NORTHAMPTON, MA 010602093 (Tel: 4135822000)
NPI status registered as active in NPPES database
Registered at 725 NORTH ST, PITTSFIELD, MA 012014109 (Tel: 4134472000)
Registered at 3A WILDWOOD LN, GOSHEN, MA 010329612 (Tel: 4012252538)
Recorded as KARL HIRSCHEGGER, PA-C
Physician Assistant (license number reported to NPPES: MA PA5408)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Northampton
- Ashley Rouleau, PA-C
- Taylor Cohen, PA
- Kathryn Stevenson, PA-C
- Courtney Finnigan, PA-C
- Daniel Schwartz, PA
- Kirsten Bringardner, PA-C
Mailing Address
30 Locust St
Northampton, MA 010602093
Phone: 4135822000