Oliver Johnson
Physician Assistant โข Springfield, MA
819 Worcester St Ste 1
Springfield, MA 011511056
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Oliver Johnson is listed in NPPES under Physician Assistant.
-
NPI assigned on July 20, 2021; this date does not establish years in practice.
-
Published CMS data list 844 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.
-
Published Part B service records, 2024:
- 99309 โ Subsequent nursing facility care with moderate level of medical decision making, per day: 490 service units.
- 99309 โ Subsequent nursing facility care with moderate level of medical decision making, per day: 206 service units.
- 99310 โ Subsequent nursing facility care with high level of medical decision making, per day: 51 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 7 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 1,211 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.
-
Published Part D records, 2024:
- Oxycodone Hcl โ 137 prescription fills, including refills.
- Lorazepam โ 129 prescription fills, including refills.
- Clonazepam โ 80 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 42 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 65% of clinicians listed under Physician Assistant in Springfield, MA (2024, 104 clinicians with data). Median for this group: 341. Middle half: 122 to 1,241.
More Medicare Part B services than 80% of 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.
-
Medicare Part B services went from 506 in 2023 to 844 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
819 Worcester St Ste 1
Springfield, MA 011511056
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
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
120 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 $79,610 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 $59,235 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
1,212 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
$33,634 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)
Fewer than 11 payment records totaling $21.00 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.
NPI first issued
2021
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, 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)
Oliver Johnson 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 Oliver Johnson 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 Physician Assistant in Springfield, MA (2024, 104 clinicians with data). Median for this group: 341. Middle half: 122 to 1,241.
More Medicare Part B services than 80% of 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
A higher Medicare-allowed amount than 75% of clinicians listed under Physician Assistant in Springfield, MA (2024, 104 clinicians with data). Median for this group: $27,179. Middle half: $9,345 to $62,059.
A higher Medicare-allowed amount than 90% 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
A higher Medicare payment amount than 80% of clinicians listed under Physician Assistant in Springfield, MA (2024, 104 clinicians with data). Median for this group: $20,253. Middle half: $7,181 to $47,113.
A higher Medicare payment amount than 90% 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
More Part D prescriptions than 75% of clinicians listed under Physician Assistant in Springfield, MA (2024, 97 clinicians with data). Median for this group: 261. Middle half: 104 to 756.
More Part D prescriptions than 85% 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 higher Part D drug cost than 65% of clinicians listed under Physician Assistant in Springfield, MA (2024, 97 clinicians with data). Median for this group: $2,510. Middle half: $1,001 to $81,448.
A higher 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.
172 active clinicians are listed under Physician Assistant with a practice address in Springfield, MA (4,715 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Springfield
9.3% of these 172 clinicians have the CMS telehealth indicator.
69.2% of these 172 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.
-
Medicare Part B services
Medicare Part B services increased 67% from 506 in 2023 to 844 in 2024.
- 2023: 506
- 2024: 844
-
Medicare-allowed amount
Medicare-allowed amount increased 73% from $45,968 in 2023 to $79,610 in 2024.
- 2023: $45,968
- 2024: $79,610
-
Paid by Medicare
Paid by Medicare increased 62% from $36,628 in 2023 to $59,235 in 2024.
- 2023: $36,628
- 2024: $59,235
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 208% from 393 in 2023 to 1,211 in 2024.
- 2023: 393
- 2024: 1,211
-
30-day fills
30-day fills increased 208% from 393 in 2023 to 1,212 in 2024.
- 2023: 393
- 2024: 1,212
-
Part D drug cost
Part D drug cost increased 231% from $10,171 in 2023 to $33,634 in 2024.
- 2023: $10,171
- 2024: $33,634
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $28.80 in 2023 to $21.00 in 2025.
- 2023: $28.80
- 2024: $251.48
- 2025: $21.00
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 ยท 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 โ December 31, 2025): fewer than 11 records totaling $21.00.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ACADIA Pharmaceuticals Inc |
Food and Beverage
In-kind items and services
|
NUPLAZID | General | $21.00 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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, 2023โ2024; 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 |
|---|---|---|---|---|
|
99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
|
490 | 80 | $164.00 | $91.39 |
|
99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
|
206 | 54 | $164.00 | $91.32 |
|
99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
|
51 | 37 | $189.00 | $129.88 |
|
99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
|
32 | 24 | $189.00 | $129.42 |
|
99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
|
29 | 18 | $119.00 | $63.14 |
|
99316
Nursing facility discharge management, more than 30 minutes
|
24 | 22 | $177.00 | $110.74 |
|
99497
Advance care planning, first 30 minutes
|
12 | 12 | $129.00 | $63.60 |
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 |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 137 | 1,789 | $1,736.04 | 16 |
| Lorazepam | Lorazepam | 129 | 2,843 | $1,833.25 | 28 |
| Clonazepam | Clonazepam | 80 | 1,572 | $1,089.23 | 12 |
| Tramadol Hcl | Tramadol Hcl | 79 | 1,258 | $742.71 | 11 |
| Trazodone Hcl | Trazodone Hcl | 58 | 1,219 | $711.26 | 35 |
| Warfarin Sodium | Warfarin Sodium | 48 | 118 | $197.84 | โ |
| Oxycontin | Oxycodone Hcl | 44 | 479 | $8,575.49 | โ |
| Pregabalin | Pregabalin | 42 | 815 | $942.21 | โ |
| Morphine Sulfate | Morphine Sulfate | 40 | 497 | $606.88 | 12 |
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 37 | 621 | $4,146.36 | โ |
| Gabapentin | Gabapentin | 36 | 763 | $642.73 | 26 |
| Atorvastatin Calcium | Atorvastatin Calcium | 28 | 574 | $332.50 | 27 |
| Furosemide | Furosemide | 24 | 285 | $105.45 | 18 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 22 | 364 | $1,306.14 | โ |
| Quetiapine Fumarate | Quetiapine Fumarate | 22 | 418 | $359.04 | 11 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 19 | 299 | $181.27 | โ |
| Alprazolam | Alprazolam | 19 | 416 | $222.66 | โ |
| Duloxetine Hcl | Duloxetine Hcl | 19 | 380 | $259.01 | โ |
| Lisinopril | Lisinopril | 17 | 407 | $107.02 | 15 |
| Metformin Hcl | Metformin Hcl | 17 | 441 | $150.45 | 15 |
| Sertraline Hcl | Sertraline Hcl | 16 | 327 | $166.35 | 13 |
| Amlodipine Besylate | Amlodipine Besylate | 16 | 331 | $130.18 | 16 |
| Pantoprazole Sodium | Pantoprazole Sodium | 16 | 318 | $253.03 | 16 |
| Tamsulosin Hcl | Tamsulosin Hcl | 16 | 324 | $188.44 | 16 |
| Buspirone Hcl | Buspirone Hcl | 16 | 423 | $169.49 | โ |
(top 25 shown)
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: 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
I20230315001721
MA
6709250673
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Nurse Practitioner
Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Physician Assistant (license number reported to NPPES: MA PA8349)
Registered at 819 WORCESTER ST STE 1, SPRINGFIELD, MA 011511056 (Tel: 4133042501)
Registered at 819 WORCESTER ST STE 1, SPRINGFIELD, MA 011511056
NPI status registered as active in NPPES database
Registered at 230 SILVER ST, MONSON, MA 010579439 (Tel: 4132408008)
Registered at 230 SILVER ST, MONSON, MA 010579439
Recorded as OLIVER JOHNSON
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Springfield
- Madison Bonavita, PA-C
- Christopher Clark, PA-C
- Cassandra Ayre, PA-C
- Frederico Fernandes, PA-C
- Kimberly Mahoney, PA
- Sarah Amaral, PA-C
Mailing Address
819 Worcester St Ste 1
Springfield, MA 011511056