Dr. Stephen Mark Summers, MD

  • Mendon, MA
  • Pulmonologist
NPI1841233269PAC ID4183656200
Medicare services, 2024
781
Medicare patients, 2024
419
Part D claims, 2024
1,095
MIPS score, 2024
100
Hospital affiliations
4
Practice address
55 North Ave, Mendon, MA 01756
Practice phone
Call (508) 334-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Umass Memorial Medical Center

Mendon, Massachusetts

See all 6 affiliations

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Dr. Stephen Mark Summers is a pulmonologist in Mendon, Massachusetts

Dr. Summers practices at Umass Memorial Medical Center in Mendon, Massachusetts.

Dr. Summers' NPI, 1841233269, was assigned on June 14, 2006. Dr. Summers graduated from University of Maryland School of Medicine in 1999. Dr. Summers holds Massachusetts license 232045.

NPI and contact details
Medicare PAC ID
4183656200
NPI enumeration date
June 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(508) 334-1000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
53
Medical school graduation
1999

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen Mark Summers practices at Umass Memorial Medical Center in Mendon, Massachusetts

Dr. Summers' primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.

  • Umass Memorial Medical Center
    55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Stephen Mark Summers is affiliated with 5 sites of care and 1 medical group

Dr. Summers' primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Summers is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Summers to 3 more hospitals, each named with a free account.

See all 6 affiliations for Dr. Summers

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Stephen Mark Summers' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Summers practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Umass Memorial Medical CenterAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen Mark Summers is one of 485 pulmonologists in Massachusetts

Pulmonary disease is Dr. Summers' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Summers is licensed in Massachusetts.

Specialties and state licenses

  • Pulmonary disease, MassachusettsPrimaryLicense 232045 · taxonomy 207RP1001X

Pulmonologists near Dr. Summers

Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen Mark Summers billed Medicare for 781 services in 2024

CMS data shows 781 Medicare services from Dr. Summers across 11 procedure codes in 2024, for 419 Medicare patients. Medicare paid $68,595 for them.

Medicare services, 2024781
Medicare patients419
Paid by Medicare$68,595
Procedure codes11

Dr. Summers' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 7252024: 7818%

Where Dr. Summers' Medicare services took place, 2024

  • In an office122%
  • In a facility76998%

Dr. Summers compared with the Massachusetts median for pulmonologists, 2024

  • Dr. Summers
  • Massachusetts median
Medicare services
781vs 47564% above
Medicare patients
419vs 25564% above
Part D claims
902vs 3292.7 times

Medians across 481 pulmonologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Summers' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Summers

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Stephen Mark Summers treated 419 Medicare patients in 2024, average age 72

CMS counts 419 Medicare patients who saw Dr. Summers in 2024. The largest group is 65 to 74, with 161 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 2.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Summers' median patient age at 72, with 50% women.

Medicare patients, 2024419
Average age72
Average risk score2.47
Also on Medicaid43%

Dr. Summers' Medicare patients by age, 2024

Dr. Summers' Medicare patients by sex, 2024

  • Women21652%
  • Men20348%

Chronic conditions among Dr. Summers' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. COPD57%
  4. Arthritis50%
  5. Ischemic heart disease44%
  6. Mood disorders41%
  7. Chronic kidney disease40%
  8. Diabetes40%

Share of Medicare patients with each condition. A patient can have several.

Dr. Summers' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women50%
  • Men50%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen Mark Summers wrote 1,095 Medicare Part D claims in 2024

In 2024, Dr. Summers wrote 1,095 Medicare Part D claims for 249 patients. 44% of them were for generic drugs. CMS names the drug for 902 of them, across 23 drugs with 11 or more claims each, at $295,583 in total drug cost. In 2023, CMS named 1,135 claims across 29 drugs.

Part D claims, 20241,095
Drugs named by CMS23
Total drug cost$295,583
Part D patients249

Dr. Summers' Part D claims by kind of drug, 2024

  • Generic477 claims44%
  • Brand-name618 claims56%

Dr. Summers' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Summers' Part D claims, 2024

  • Antibiotics4%48 of 1,095 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,1352024: 90221%

Drugs named by CMS: 23 in 2024, 29 in 2023.

See all prescribing by Dr. Summers

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Stephen Mark Summers scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Summers for performance year 2024, reported through an alternative payment model (APM). Dr. Summers accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Summers as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Summers' MIPS scores, performance year 2024

  • 100of 100Final score
  • 83of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Stephen Mark Summers graduated from University of Maryland School of Medicine

Dr. Summers graduated from University of Maryland School of Medicine in 1999.

  1. Medical schoolUniversity of Maryland School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Stephen Mark Summers's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephen Mark Summers

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Stephen Mark Summers' NPI number?

Dr. Stephen Mark Summers' NPI number is 1841233269. It was assigned on June 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen Mark Summers?

Dr. Stephen Mark Summers is a pulmonologist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).

Where does Dr. Stephen Mark Summers practice?

Dr. Summers practices at 55 North Ave, Mendon, MA 01756. Dr. Summers' primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Summers to 3 hospitals.

What is Dr. Stephen Mark Summers' office phone number?

The practice phone on file for Dr. Summers is (508) 334-1000.

What is Dr. Stephen Mark Summers' medical license number?

Dr. Summers holds Massachusetts license 232045.

Which hospitals is Dr. Stephen Mark Summers affiliated with?

Dr. Summers is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Summers to 3 more hospitals.

What medical group is Dr. Stephen Mark Summers part of?

Dr. Summers is linked to UMass Memorial Medical Group.

Does Dr. Stephen Mark Summers accept Medicare?

Yes. CMS data shows Dr. Summers billed Medicare for 781 services in 2024, and Dr. Summers accepts Medicare assignment.

Does Dr. Stephen Mark Summers offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Summers as offering telehealth services.

What is Dr. Stephen Mark Summers' MIPS score?

Dr. Summers' MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

Show 5 more questionsShow fewer questions

How many Medicare patients does Dr. Stephen Mark Summers see?

CMS counts 419 Medicare patients who saw Dr. Summers in 2024, with an average age of 72.

What services does Dr. Stephen Mark Summers bill to Medicare?

In 2024, Dr. Summers' most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and office visit, established patient (99213).

Where did Dr. Stephen Mark Summers go to medical school?

Dr. Summers graduated from University of Maryland School of Medicine in 1999.

What drugs does Dr. Stephen Mark Summers prescribe most?

In 2024 Medicare Part D data, Dr. Summers' most prescribed drugs by claims were Albuterol Sulfate Hfa, Trelegy Ellipta and Fluticasone Propionate.

How long has Dr. Stephen Mark Summers been practicing?

Dr. Summers graduated from medical school in 1999, 27 years ago.

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