Dr. Alexander Donald Pyden, MD
- Medicare services, 2024
- 1,446
- Medicare patients, 2024
- 902
- MIPS score, 2024
- 92
- Hospital affiliations
- 5
- Medical group
- 1
- Practice address
- 41 & 45 Mall Road, Burlington, MA 01803
- Practice phone
- Call (781) 744-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Alexander Donald Pyden is a pathologist in Burlington, Massachusetts
Dr. Pyden practices at Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health.
Dr. Pyden's NPI, 1548650971, was assigned on January 22, 2015. Dr. Pyden graduated from Northwestern University Feinberg Medical School in 2016. Dr. Pyden holds Massachusetts license 286257.
- NPI
- 1548650971NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880094465
- NPI enumeration date
- January 22, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 744-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Donald Pyden practices at Lahey Clinic in Burlington, Massachusetts
Dr. Pyden's primary practice is Lahey Clinic, at 41 & 45 Mall Road, Burlington, MA 01803 in Middlesex County. The practice phone is (781) 744-5100.
- Lahey Clinic41 & 45 Mall Road, Burlington, MA 01803 · Middlesex CountyPhone(781) 744-5100
Source: Dmand AI Affiliation Data
Dr. Alexander Donald Pyden is affiliated with 5 sites of care and 1 medical group
Dr. Pyden's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. Dr. Pyden is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Lahey Clinic. Dmand AI also links Dr. Pyden to 3 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander Donald Pyden's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pyden practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lahey Clinic | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alexander Donald Pyden is one of 306 pathologists in Massachusetts
Anatomic pathology and clinical pathology is Dr. Pyden's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Pyden is licensed in Massachusetts.
Specialties and state licenses
- Anatomic pathology and clinical pathology, MassachusettsPrimary
Pathologists near Dr. Pyden
Counts of pathologists 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. Alexander Donald Pyden billed Medicare for 1,446 services in 2024
CMS data shows 1,446 Medicare services from Dr. Pyden across 6 procedure codes in 2024, for 902 Medicare patients. Medicare paid $19,195 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pyden's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 5802024: 1,446149%
Dr. Pyden compared with the Massachusetts median for pathologists, 2024
- Dr. Pyden
- Massachusetts median
- Medicare services
- 1,446vs 1,3626% above
- Medicare patients
- 902vs 55563% above
Medians across 300 pathologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Pyden's 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Donald Pyden treated 902 Medicare patients in 2024, average age 77
CMS counts 902 Medicare patients who saw Dr. Pyden in 2024. The largest group is 75 to 84, with 401 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.53, 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. Pyden's median patient age at 69, with 54% women.
Dr. Pyden's Medicare patients by age, 2024
Dr. Pyden's Medicare patients by sex, 2024
- Women42948%
- Men47352%
Chronic conditions among Dr. Pyden's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease44%
- Ischemic heart disease34%
- Anxiety30%
- Diabetes29%
- Mood disorders28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pyden's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander Donald Pyden scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Pyden for performance year 2024, reported through an alternative payment model (APM). Dr. Pyden accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Pyden's MIPS scores, performance year 2024
- 92of 100Final score
- 76.6of 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. Alexander Donald Pyden graduated from Northwestern University Feinberg Medical School
Dr. Pyden graduated from Northwestern University Feinberg Medical School in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander Donald Pyden's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors 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 memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alexander Donald Pyden
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What is Dr. Alexander Donald Pyden's NPI number?
Dr. Alexander Donald Pyden's NPI number is 1548650971. It was assigned on January 22, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Donald Pyden?
Dr. Alexander Donald Pyden is a pathologist in Burlington, Massachusetts. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Alexander Donald Pyden practice?
Dr. Pyden practices at 41 & 45 Mall Road, Burlington, MA 01803. Dr. Pyden's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Pyden to 3 hospitals.
What is Dr. Alexander Donald Pyden's office phone number?
The practice phone on file for Dr. Pyden is (781) 744-5100.
What is Dr. Alexander Donald Pyden's medical license number?
Dr. Pyden holds Massachusetts license 286257.
Which hospitals is Dr. Alexander Donald Pyden affiliated with?
Dr. Pyden practices at Lahey Clinic in Burlington, Massachusetts. Dr. Pyden is also affiliated with Beth Israel Deaconess Medical Center. Dmand AI links Dr. Pyden to 3 more hospitals.
What medical group is Dr. Alexander Donald Pyden part of?
Dr. Pyden is linked to Lahey Clinic.
Does Dr. Alexander Donald Pyden accept Medicare?
Yes. CMS data shows Dr. Pyden billed Medicare for 1,446 services in 2024, and Dr. Pyden accepts Medicare assignment.
What is Dr. Alexander Donald Pyden's MIPS score?
Dr. Pyden's MIPS final score for performance year 2024 is 92 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Alexander Donald Pyden see?
CMS counts 902 Medicare patients who saw Dr. Pyden in 2024, with an average age of 77.
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What services does Dr. Alexander Donald Pyden bill to Medicare?
In 2024, Dr. Pyden's most billed Medicare services were lab and pathology test (84165), lab and pathology test (86334) and lab and pathology test (84181).
Where did Dr. Alexander Donald Pyden go to medical school?
Dr. Pyden graduated from Northwestern University Feinberg Medical School in 2016.
How long has Dr. Alexander Donald Pyden been practicing?
Dr. Pyden graduated from medical school in 2016, 10 years ago.
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