Dr. Katelyn Sullivan , DO
Emergency Medicine โข Springfield, MA
Baystate Medical Ctr, 759 Chestnut Steet
Springfield, MA 011990001
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. Katelyn Sullivan is listed in NPPES under Emergency Medicine.
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NPI assigned on March 23, 2015; this date does not establish years in practice.
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Published CMS data list 437 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:
- 99285 โ Emergency department visit with high level of medical decision making: 185 service units.
- 99284 โ Emergency department visit with moderate level of medical decision making: 99 service units.
- 99214 โ Established patient outpatient office visit: 35 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 11 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 16 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:
- Doxycycline Hyclate โ 16 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 the full table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 89 clinicians with data). Median for this group: 349. Middle half: 208 to 465.
More Medicare Part B services than 60% of clinicians listed under Emergency Medicine in Massachusetts (2024, 1,254 clinicians with data). Median for this group: 360. Middle half: 187 to 573.
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 431 in 2020 to 437 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
Baystate Medical Ctr
759 Chestnut Steet
Springfield, MA 011990001
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: South Shore Health Express 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
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
340 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 $63,874 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 $48,674 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
16 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
$96 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 2019โ2025.
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)
Dr. Sullivan 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. Sullivan 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 Springfield and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 65% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 89 clinicians with data). Median for this group: 349. Middle half: 208 to 465.
More Medicare Part B services than 60% of clinicians listed under Emergency Medicine in Massachusetts (2024, 1,254 clinicians with data). Median for this group: 360. Middle half: 187 to 573.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 89 clinicians with data). Median for this group: $50,845. Middle half: $30,876 to $66,369.
A higher Medicare-allowed amount than 60% of clinicians listed under Emergency Medicine in Massachusetts (2024, 1,254 clinicians with data). Median for this group: $50,973. Middle half: $27,163 to $80,625.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 89 clinicians with data). Median for this group: $38,557. Middle half: $23,985 to $50,960.
A higher Medicare payment amount than 60% of clinicians listed under Emergency Medicine in Massachusetts (2024, 1,254 clinicians with data). Median for this group: $39,128. Middle half: $20,696 to $61,962.
Medicare Part D prescriptions
Fewer Part D prescriptions than 80% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 51 clinicians with data). Median for this group: 59. Middle half: 25 to 141.
Fewer Part D prescriptions than 80% of clinicians listed under Emergency Medicine in Massachusetts (2024, 797 clinicians with data). Median for this group: 57. Middle half: 23 to 131.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Emergency Medicine in Springfield, MA (2024, 51 clinicians with data). Median for this group: $577. Middle half: $167 to $1,349.
A lower Part D drug cost than 80% of clinicians listed under Emergency Medicine in Massachusetts (2024, 797 clinicians with data). Median for this group: $626. Middle half: $188 to $1,315.
128 active clinicians are listed under Emergency Medicine with a practice address in Springfield, MA (1,831 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Springfield
1.6% of these 128 clinicians have the CMS telehealth indicator.
68% of these 128 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: 431 in 2020 and 437 in 2024.
- 2020: 431
- 2021: 684
- 2022: 386
- 2023: 372
- 2024: 437
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Medicare-allowed amount
Medicare-allowed amount increased 35% from $47,329 in 2020 to $63,874 in 2024.
- 2020: $47,329
- 2021: $80,101
- 2022: $56,598
- 2023: $62,997
- 2024: $63,874
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Paid by Medicare
Paid by Medicare increased 26% from $38,671 in 2020 to $48,674 in 2024.
- 2020: $38,671
- 2021: $66,789
- 2022: $46,433
- 2023: $50,477
- 2024: $48,674
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 38% from 26 in 2018 to 16 in 2024.
- 2018: 26
- 2019: 98
- 2020: 36
- 2021: 91
- 2024: 16
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30-day fills
30-day fills decreased 38% from 26 in 2018 to 16 in 2024.
- 2018: 26
- 2019: 98
- 2020: 36
- 2021: 91
- 2024: 16
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Part D drug cost
Part D drug cost went from $112 in 2018 to $96 in 2024.
- 2018: $112
- 2019: $522
- 2020: $160
- 2021: $432
- 2024: $96
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 2017โ2023 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, 2018โ2024; 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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99285
Emergency department visit with high level of medical decision making
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185 | 169 | $952.75 | $178.11 |
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99284
Emergency department visit with moderate level of medical decision making
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99 | 66 | $645.61 | $122.91 |
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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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35 | 34 | $302.00 | $131.19 |
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99291
Critical care, first 30-74 minutes
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28 | 28 | $1246.00 | $220.28 |
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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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15 | 15 | $459.00 | $169.79 |
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71046
X-ray of chest, 2 views
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14 | 14 | $88.00 | $30.84 |
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87635
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen
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13 | 13 | $128.00 | $50.28 |
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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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13 | 13 | $937.08 | $180.23 |
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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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12 | 12 | $205.00 | $92.86 |
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99283
Emergency department visit with low level of medical decision making
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12 | 11 | $337.58 | $72.41 |
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81002
Urinalysis, manual test
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11 | 11 | $9.00 | $3.41 |
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 |
|---|---|---|---|---|---|
| Doxycycline Hyclate | Doxycycline Hyclate | 16 | 121 | $96.28 | 16 |
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: 2025-09-11NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20180913001863
MA
2567775331
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
South Shore Health Express Inc
117 Old Church St, Pembroke, MA 023591969
Phone: 7816265170
South Shore Health Express Inc
330 Washington St, Weymouth, MA 021882932
Phone: 7816265160
South Shore Health Express Inc
170 Bedford St, Abington, MA 023512068
Phone: 7816265700
South Shore Health Express Inc
182 Summer St, Kingston, MA 023641277
Phone: 7816265340
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
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Internal 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 at BAYSTATE MEDICAL CTR, 759 CHESTNUT STEET, SPRINGFIELD, MA 011990001 (Tel: 4137940000)
Registered at 680 CENTRE ST, BROCKTON, MA 023023308 (Tel: 5089417400)
Emergency Medicine (license number reported to NPPES: MA 274956)
NPI status registered as active in NPPES database
Registered at BAYSTATE MEDICAL CTR, 759 CHESTNUT STEET, SPRINGFIELD, MA 011990001 (Tel: 4137940000)
Registered at BAYSTATE MEDICAL CTR, 759 CHESTNUT STEET, SPRINGFIELD, MA 011990001 (Tel: 4137940000)
Recorded as KATELYN SULLIVAN, D.O.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Springfield
- Dr. Komal Paladugu, MD
- Dr. Zachary Testo, MD
- Donald Einck
- Dr. Joseph Schmidt, MD
- Dr. Ryan Clark, DO
- Dr. Agnieszka Nicora, MD
Mailing Address
Baystate Medical Ctr, 759 Chestnut Steet
Springfield, MA 011990001
Phone: 4137940000