Medicare Enrolled
Dr. Matthew Spitzer, MD
Endocrinology · Greenfield, MA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Spitzer 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. Spitzer?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Spitzer
Dr. Matthew Spitzer is an endocrinology specialist in Greenfield, MA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Spitzer performed 4,417 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Spitzer received a total of $101 from 1 pharmaceutical and/or device company across 1 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. Spitzer 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.
✓ 18 years of NPI registration
▲ Top 10% volume in MA
$101 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗4,417
Medicare services
Top 10% in MA for endocrinology
Not available
Unique patients (not deduplicated)
$31
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 |
|---|---|---|---|
| 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. |
657 | $95 | $300 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
597 | $8 | $20 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
294 | $9 | $50 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
284 | $16 | $71 |
| Continuous glucose monitoring with interpretation This procedure involves monitoring blood sugar levels in tissue fluid using a sensor placed under the skin, along with the interpretation and reporting of the results. |
216 | $26 | $87 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
197 | $29 | $127 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
173 | $7 | $29 |
| Kidney function blood test panel | 158 | $9 | $38 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
151 | $6 | $23 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
151 | $5 | $27 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
144 | $13 | $62 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
134 | $9 | $38 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
129 | $10 | $46 |
| 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. |
126 | $40 | $173 |
| 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. |
98 | $115 | $390 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
93 | $8 | $50 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
88 | $3 | $17 |
| 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. |
78 | $126 | $420 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
76 | $16 | $90 |
| LDL cholesterol level test A blood test that measures the amount of low-density lipoprotein (LDL) cholesterol in your blood. LDL is often referred to as "bad" cholesterol. |
67 | $10 | $40 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
63 | $49 | $75 |
| 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. |
60 | $67 | $220 |
| Urine volume measurement | 51 | $4 | $13 |
| Smoking cessation counseling, more than 10 minutes Intensive counseling session focused on helping patients quit smoking and tobacco use, lasting more than 10 minutes. |
41 | $28 | $65 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
41 | $34 | $35 |
| 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. |
34 | $8 | $35 |
| Liver function blood test panel | 30 | $8 | $35 |
| 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. |
30 | $59 | $60 |
| 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. |
24 | $49 | $168 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
24 | $2 | $3 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
22 | $17 | $60 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
20 | $4 | $20 |
| 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. |
19 | $9 | $55 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
19 | $29 | $121 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
17 | $15 | $30 |
| 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. |
11 | $20 | $35 |
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.
1.1% high complexity
0.9% medium
98.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$101
Total received (2024-2024)
Bottom 16% in MA for endocrinology
1
Company
1
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
$101
Payments by company (2024)
Dexcom, Inc.
$101
Top 3 companies account for 100.0% of 2024 payments
Associated products mentioned in payments ›
Dexcom G6 Transmitter
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
Endocrinologists in nearby ZIP areas
9
County median income
$72,584
Nearest hospital to ZIP centroid (approximate)
BAYSTATE FRANKLIN MEDICAL CENTER
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. Spitzer is a clinical cardiology specialist, with above-average Medicare volume (top 10% in MA), with 18 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. Spitzer experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Spitzer performed 657 office visit, established patient (30-39 min) 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. Spitzer receive payments from pharmaceutical companies?
Yes. Dr. Spitzer received a total of $101 from 1 company across 1 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. Spitzer's costs compare to other endocrinologists in Greenfield?
Dr. Spitzer's average Medicare payment per service is $31. 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. Spitzer) 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 →
Explore related providers
Specialty guide
Understanding Endocrinology
Common procedures, typical costs, and what industry payments mean in endocrinology.
Same specialty & city
Endocrinologists in Greenfield
Browse endocrinologists in Greenfield ranked by procedure volume and transparency data.
Highest volume
Top Endocrinologists in MA
Endocrinologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Endocrinologists in MA
Which MA endocrinologists receive the most from drug and device companies.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology