Medicare Enrolled
Dr. Mark Fisher, MD, MPH
Rheumatology · Boston, MA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Fisher from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Fisher?
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What this data tells you about Dr. Fisher
Dr. Mark Fisher is a rheumatology specialist in Boston, MA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Fisher performed 29,405 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Fisher received a total of $2,387 from 5 pharmaceutical and/or device companies across 6 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Fisher is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years of NPI registration
▲ Top 6% volume in MA
$2,387 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗29,405
Medicare services
Top 6% in MA for rheumatology
Not available
Unique patients (not deduplicated)
$20
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 23,700 | $18 | $25 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
800 | $93 | $370 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
672 | $8 | $17 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
481 | $10 | $36 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
464 | $8 | $26 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
452 | $40 | $555 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
402 | $12 | $70 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
391 | $3 | $9 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
339 | $5 | $18 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
310 | $6 | $345 |
| Bone density scan (DEXA) of forearm, finger, hand, or foot A DEXA scan measures bone mineral density in the forearm, finger, hand, or foot. This test helps assess bone strength and risk of fracture. |
187 | $33 | $108 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
179 | $118 | $522 |
| Urinalysis, microscopic examination A laboratory test that examines a urine sample under a microscope to check for cells, crystals, bacteria, or other substances. |
94 | $3 | $11 |
| Injection, methylprednisolone acetate, 40 mg | 92 | $6 | $27 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
88 | $54 | $208 |
| Direct bilirubin level test A blood test that measures the amount of direct bilirubin in your body. Direct bilirubin is the form of the waste product processed by the liver. |
84 | $5 | $17 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
77 | $46 | $232 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
53 | $4 | $16 |
| Total calcium level test A blood test that measures the total amount of calcium in your body. |
45 | $5 | $18 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
41 | $16 | $58 |
| Rheumatoid factor level | 41 | $6 | $19 |
| Hepatitis A antibody test A blood test that measures the level of antibodies to the hepatitis A virus in your body. This test helps determine if you have been exposed to the virus or if you have immunity from vaccination. |
40 | $12 | $42 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
37 | $29 | $99 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
36 | $63 | $250 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
36 | $31 | $100 |
| Hepatitis B screening for high-risk individuals This screening test for high-risk, non-pregnant individuals includes testing for hepatitis B surface antigen, antibodies to surface antigen, and antibodies to core antigen. A neutralizing confirmatory test is performed when necessary. |
36 | $28 | $95 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
33 | $6 | $22 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
26 | $6 | $23 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
25 | $129 | $470 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
24 | $8 | $29 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
24 | $14 | $48 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
24 | $72 | $161 |
| Acute hepatitis panel A blood test that screens for markers of acute viral hepatitis infection. |
18 | $45 | $159 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
17 | $40 | $138 |
| Liver function blood test panel | 14 | $8 | $28 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
12 | $22 | $58 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
11 | $5 | $18 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
0.3% high complexity
83.6% medium
16.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$2,387
Total received (2018-2024)
Avg $796/year across 3 years
Top 38% in MA for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
5
Companies
6
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$48
2021
$19
2018
$2,320
Payments by company (2024)
Organon Llc
$25
Novartis Pharmaceuticals Corporation
$23
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
UCB, Inc.
$1,920
Celltrion Healthcare Co., Ltd
$400
Organon Llc
$25
Novartis Pharmaceuticals Corporation
$23
Lilly USA, LLC
$19
Top 3 companies account for 98.3% of all-time payments
Associated products mentioned in payments ›
COSENTYX · HADLIMA · INFLECTRA · TALTZ
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Rheumatologists in nearby ZIP areas
161
County median income
$92,859
Nearest hospital to ZIP centroid (approximate)
MASSACHUSETTS GENERAL HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Fisher is a mixed practice specialist, with above-average Medicare volume (top 6% in MA), with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Fisher experienced with denosumab injection (prolia/xgeva)?
Based on Medicare claims data, Dr. Fisher performed 23,700 denosumab injection (prolia/xgeva) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Fisher receive payments from pharmaceutical companies?
Yes. Dr. Fisher received a total of $2,387 from 5 companies across 6 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Fisher's costs compare to other rheumatologists in Boston?
Dr. Fisher's average Medicare payment per service is $20. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Fisher) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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