Dr. Mary Jo S. Farmer, MD, PhD
- Medicare services, 2024
- 209
- Medicare patients, 2024
- 193
- Part D claims, 2024
- 494
- Publications
- 4
- Hospital affiliations
- 3
- Practice address
- 81 Highland Ave, Salem, MA 01970
- Practice phone
- Call (978) 354-2065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MGB Salem Hospital
Salem, Massachusetts
Find Dr. Farmer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary Jo S. Farmer is a pulmonologist in Salem, Massachusetts
Dr. Farmer practices at MGB Salem Hospital in Salem, Massachusetts.
Dr. Farmer's NPI, 1942296108, was assigned on September 23, 2005. Dr. Farmer graduated from Tufts University School Of Medicine in 1998. Dr. Farmer's Massachusetts license number on file is 206728.
- NPI
- 1942296108NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810960333
- NPI enumeration date
- September 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (978) 354-2065
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Jo S. Farmer practices at MGB Salem Hospital in Salem, Massachusetts
Dr. Farmer's primary practice is MGB Salem Hospital, at 81 Highland Ave, Salem, MA 01970 in Essex County. The practice phone is (978) 354-2065.
- MGB Salem Hospital81 Highland Ave, Salem, MA 01970 · Essex CountyPhone(978) 354-2065
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mary Jo S. Farmer is affiliated with 4 sites of care and 1 medical group
Dr. Farmer's primary practice is MGB Salem Hospital in Salem, Massachusetts. Dr. Farmer is also affiliated with Salem Hospital. The medical group on file is Mass General Brigham (formerly North Shore Physicians Group). Dmand AI also links Dr. Farmer to 2 more hospitals, each named with a free account.
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. Mary Jo S. Farmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Farmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MGB Salem Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary Jo S. Farmer is one of 485 pulmonologists in Massachusetts
Pulmonary disease is Dr. Farmer's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Farmer is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Farmer has a license on file in Massachusetts.
Specialties and state licenses
- Pulmonary disease, MassachusettsPrimary
Clinical focus
Dmand AI lists asthma, bronchitis, chronic lung disease, chronic obstructive pulmonary disease (COPD), hypersomnia, pulmonary fibrosis, pulmonary heart disease and sleep apnea among the conditions Dr. Farmer treats.
Pulmonologists near Dr. Farmer
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. Mary Jo S. Farmer billed Medicare for 209 services in 2024
CMS data shows 209 Medicare services from Dr. Farmer across 9 procedure codes in 2024, for 193 Medicare patients. Medicare paid $15,670 for them.
Dr. Farmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5572024: 14075%
- Tests and treatments
- 2023: 1182024: 6942%
- Surgery
- 2023: 112024: 0100%
Where Dr. Farmer's Medicare services took place, 2024
- In an office6531%
- In a facility14469%
Dr. Farmer compared with the Massachusetts median for pulmonologists, 2024
- Dr. Farmer
- Massachusetts median
- Medicare services
- 209vs 47556% below
- Medicare patients
- 193vs 25524% below
- Part D claims
- 407vs 32924% above
Medians across 481 pulmonologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Farmer'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.
Need commercial claims for Dr. Farmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Farmer and other pulmonologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Jo S. Farmer treated 193 Medicare patients in 2024, average age 74
CMS counts 193 Medicare patients who saw Dr. Farmer in 2024. The largest group is 65 to 74, with 82 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.05, 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. Farmer's median patient age at 70, with 51% women.
Dr. Farmer's Medicare patients by age, 2024
Dr. Farmer's Medicare patients by sex, 2024
- Women9951%
- Men9449%
Chronic conditions among Dr. Farmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Heart failure43%
- COPD41%
- Mood disorders40%
- Anxiety37%
- Atrial fibrillation37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Farmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary Jo S. Farmer wrote 494 Medicare Part D claims in 2024
In 2024, Dr. Farmer wrote 494 Medicare Part D claims for 91 patients. 39% of them were for generic drugs. CMS names the drug for 407 of them, across 19 drugs with 11 or more claims each, at $815,632 in total drug cost. In 2023, CMS named 702 claims across 21 drugs.
Dr. Farmer's Part D claims by kind of drug, 2024
- Generic191 claims39%
- Brand-name303 claims61%
Dr. Farmer's 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7022024: 40742%
Drugs named by CMS: 19 in 2024, 21 in 2023.
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. Mary Jo S. Farmer offers telehealth to Medicare patients
Dr. Farmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Farmer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary Jo S. Farmer has 4 publications on record
Dmand AI links 4 papers to Dr. Farmer in 2021. Dr. Farmer's most frequent co-authors are Nicholas S. Hill, MD and Jay S. Steingrub, MD.
Dr. Farmer's most frequent co-authors
Recent publications by Dr. Farmer
See who Dr. Farmer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Farmer works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mary Jo S. Farmer received $6,663 in industry payments from 2016 to 2024
CMS Open Payments shows 90 general payments to Dr. Farmer from 9 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 42% of the total. Gilead Sciences, Inc. paid the most, $3,584.
General payments to Dr. Farmer by program year, 2016 to 2024
General payments to Dr. Farmer by kind, 2016 to 2024
- Consulting fees$2,82542%
- Travel and lodging$2,02730%
- Food and beverage$1,62124%
- Education$1903%
Companies that paid Dr. Farmer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary Jo S. Farmer has 1 award and honors on record
Dmand AI lists 1 award for Dr. Farmer, most recently CMS Stage 1 EHR in 2011.
Awards and honors for Dr. Farmer
- 2011
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Mary Jo S. Farmer graduated from Tufts University School Of Medicine
Dr. Farmer graduated from Tufts University School Of Medicine in 1998. Dr. Farmer is a member of ACCP.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
- Board certified in sleep medicine
Source: Dmand AI Professional Profile Data
Dr. Mary Jo S. Farmer accepts plans from 15 insurance carriers
Dr. Farmer is in network with 15 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Aspirus Health Plan
- HCSC
- +7 more carriersWith a free account
Plan types Dr. Farmer accepts, by number of carriers
- PPO10
- Medicare9
- HMO7
- POS6
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mary Jo S. Farmer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Mary Jo S. Farmer
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. Mary Jo S. Farmer's NPI number?
Dr. Mary Jo S. Farmer's NPI number is 1942296108. It was assigned on September 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Jo S. Farmer?
Dr. Mary Jo S. Farmer is a pulmonologist in Salem, Massachusetts. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mary Jo S. Farmer practice?
Dr. Farmer practices at 81 Highland Ave, Salem, MA 01970. Dr. Farmer's primary practice is MGB Salem Hospital in Salem, Massachusetts. Dmand AI also links Dr. Farmer to 2 hospitals.
What is Dr. Mary Jo S. Farmer's office phone number?
The practice phone on file for Dr. Farmer is (978) 354-2065.
What is Dr. Mary Jo S. Farmer's medical license number?
Dr. Farmer's Massachusetts license number on file is 206728.
Which hospitals is Dr. Mary Jo S. Farmer affiliated with?
Dr. Farmer is affiliated with Salem Hospital. Dmand AI links Dr. Farmer to 2 more hospitals.
What medical group is Dr. Mary Jo S. Farmer part of?
Dr. Farmer is linked to Mass General Brigham (formerly North Shore Physicians Group).
Does Dr. Mary Jo S. Farmer accept Medicare?
Yes. CMS data shows Dr. Farmer billed Medicare for 209 services in 2024, and Dr. Farmer accepts Medicare assignment.
Does Dr. Mary Jo S. Farmer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Farmer as offering telehealth services.
How many Medicare patients does Dr. Mary Jo S. Farmer see?
CMS counts 193 Medicare patients who saw Dr. Farmer in 2024, with an average age of 74.
Show 9 more questionsShow fewer questions
Is Dr. Mary Jo S. Farmer board certified?
Yes. Dr. Farmer is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Mary Jo S. Farmer bill to Medicare?
In 2024, Dr. Farmer's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and lung function service (94060).
Where did Dr. Mary Jo S. Farmer go to medical school?
Dr. Farmer graduated from Tufts University School Of Medicine in 1998.
What drugs does Dr. Mary Jo S. Farmer prescribe most?
In 2024 Medicare Part D data, Dr. Farmer's most prescribed drugs by claims were Sildenafil Citrate, Albuterol Sulfate Hfa and Trelegy Ellipta.
Has Dr. Mary Jo S. Farmer received payments from drug or device companies?
CMS Open Payments shows $6,663 in general payments to Dr. Farmer from 9 companies from 2016 to 2024. The largest total came from Gilead Sciences, Inc.
How long has Dr. Mary Jo S. Farmer been practicing?
Dr. Farmer graduated from medical school in 1998, 28 years ago.
Does Dr. Mary Jo S. Farmer do research?
Dmand AI links 4 publications to Dr. Farmer.
Who does Dr. Mary Jo S. Farmer publish with?
Dr. Farmer's most frequent co-authors are Nicholas S. Hill, MD (1 shared paper) and Jay S. Steingrub, MD (1 shared paper).
What insurance does Dr. Mary Jo S. Farmer accept?
Dr. Farmer is in network with 15 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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