Dr. Susan Ansley Schaefer, MD
- Medicare services, 2024
- 1,553
- Medicare patients, 2024
- 150
- Part D claims, 2024
- 788
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 401 Andover St, North Andover, MA 01845
- Practice phone
- Call (978) 745-3711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asthma & Allergy Affiliates Inc
North Andover, Massachusetts
Find Dr. Schaefer'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. Susan Ansley Schaefer is an allergist and immunologist in North Andover, Massachusetts
Dr. Schaefer practices at Asthma & Allergy Affiliates Inc in North Andover, Massachusetts.
Dr. Schaefer's NPI, 1477622280, was assigned on November 7, 2006. Dr. Schaefer graduated from Georgetown University School of Medicine in 2001. Dr. Schaefer holds New Hampshire license 14669.
- NPI
- 1477622280NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678671732
- NPI enumeration date
- November 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 745-3711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Susan Ansley Schaefer practices at Asthma & Allergy Affiliates Inc in North Andover, Massachusetts
Dr. Schaefer's primary practice is Asthma & Allergy Affiliates Inc, at 401 Andover St, North Andover, MA 01845 in Essex County. The practice phone is (978) 745-3711.
- Asthma & Allergy Affiliates Inc401 Andover St, North Andover, MA 01845 · Essex CountyPhone(978) 745-3711
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Susan Ansley Schaefer is affiliated with 5 sites of care and 2 medical groups
Dr. Schaefer's primary practice is Asthma & Allergy Affiliates Inc in North Andover, Massachusetts. Dr. Schaefer is also affiliated with Salem Hospital. The medical group on file is Asthma and Allergy Affiliates, Inc. Dmand AI also links Dr. Schaefer to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Susan Ansley Schaefer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schaefer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asthma & Allergy Affiliates Inc | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Susan Ansley Schaefer is one of 106 allergists and immunologists in Massachusetts
Allergy and immunology is Dr. Schaefer's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dmand AI has Dr. Schaefer's licenses on file in 2 states: New Hampshire and Oregon.
Specialties and state licenses
- Allergy and immunology, New HampshirePrimary
- Oregon license
Allergists and immunologists near Dr. Schaefer
Counts of allergists and immunologists 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. Susan Ansley Schaefer billed Medicare for 1,553 services in 2024
CMS data shows 1,553 Medicare services from Dr. Schaefer across 8 procedure codes in 2024, for 150 Medicare patients. Medicare paid $21,862 for them. Every service was in an office.
Dr. Schaefer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,4532024: 1,3884%
- Office and hospital visits
- 2023: 1162024: 16542%
Dr. Schaefer compared with the Massachusetts median for allergists and immunologists, 2024
- Dr. Schaefer
- Massachusetts median
- Medicare services
- 1,553vs 1,07145% above
- Medicare patients
- 150vs 12421% above
- Part D claims
- 673vs 1893.6 times
Medians across 100 allergists and immunologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Schaefer'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schaefer and other allergists and immunologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Susan Ansley Schaefer treated 150 Medicare patients in 2024, average age 70
CMS counts 150 Medicare patients who saw Dr. Schaefer in 2024. The largest group is 65 to 74, with 84 patients. 66% of them have high cholesterol, and 50% have high blood pressure. 21% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Schaefer's median patient age at 31, with 58% women.
Dr. Schaefer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Schaefer's Medicare patients by sex, 2024
- Women11879%
- Men3221%
Chronic conditions among Dr. Schaefer's Medicare patients, 2024
- High cholesterol66%
- High blood pressure50%
- Asthma49%
- Arthritis43%
- Anxiety38%
- Mood disorders37%
- Depression36%
- Osteoporosis21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schaefer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Susan Ansley Schaefer wrote 788 Medicare Part D claims in 2024
In 2024, Dr. Schaefer wrote 788 Medicare Part D claims for 199 patients. 65% of them were for generic drugs. CMS names the drug for 673 of them, across 21 drugs with 11 or more claims each, at $142,386 in total drug cost. In 2023, CMS named 566 claims across 18 drugs.
Dr. Schaefer's Part D claims by kind of drug, 2024
- Generic516 claims65%
- Brand-name272 claims35%
Dr. Schaefer'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: 5662024: 67319%
Drugs named by CMS: 21 in 2024, 18 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
How Dr. Susan Ansley Schaefer takes part in Medicare
Dr. Schaefer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Susan Ansley Schaefer graduated from Georgetown University School of Medicine
Dr. Schaefer graduated from Georgetown University School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Susan Ansley Schaefer'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 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) |
| 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. Susan Ansley Schaefer
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. Susan Ansley Schaefer's NPI number?
Dr. Susan Ansley Schaefer's NPI number is 1477622280. It was assigned on November 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Susan Ansley Schaefer?
Dr. Susan Ansley Schaefer is an allergist and immunologist in North Andover, Massachusetts. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Susan Ansley Schaefer practice?
Dr. Schaefer practices at 401 Andover St, North Andover, MA 01845. Dr. Schaefer's primary practice is Asthma & Allergy Affiliates Inc in North Andover, Massachusetts. Dmand AI also links Dr. Schaefer to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Susan Ansley Schaefer's office phone number?
The practice phone on file for Dr. Schaefer is (978) 745-3711.
What is Dr. Susan Ansley Schaefer's medical license number?
Dr. Schaefer holds New Hampshire license 14669, one of the licenses on file in 2 states.
Which states has Dr. Susan Ansley Schaefer been licensed in?
Dmand AI has state licenses on file for Dr. Schaefer in New Hampshire and Oregon.
Which hospitals is Dr. Susan Ansley Schaefer affiliated with?
Dr. Schaefer is affiliated with Salem Hospital. Dmand AI links Dr. Schaefer to 1 more hospital.
What medical group is Dr. Susan Ansley Schaefer part of?
Dr. Schaefer is linked to Asthma and Allergy Affiliates, Inc. Dmand AI links Dr. Schaefer to 1 more medical group.
Does Dr. Susan Ansley Schaefer accept Medicare?
Yes. CMS data shows Dr. Schaefer billed Medicare for 1,553 services in 2024, and Dr. Schaefer accepts Medicare assignment.
How many Medicare patients does Dr. Susan Ansley Schaefer see?
CMS counts 150 Medicare patients who saw Dr. Schaefer in 2024, with an average age of 70.
Show 4 more questionsShow fewer questions
What services does Dr. Susan Ansley Schaefer bill to Medicare?
In 2024, Dr. Schaefer's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95117) and lung function service (94010).
Where did Dr. Susan Ansley Schaefer go to medical school?
Dr. Schaefer graduated from Georgetown University School of Medicine in 2001.
What drugs does Dr. Susan Ansley Schaefer prescribe most?
In 2024 Medicare Part D data, Dr. Schaefer's most prescribed drugs by claims were Fluticasone Propionate, Azelastine HCl and Montelukast Sodium.
How long has Dr. Susan Ansley Schaefer been practicing?
Dr. Schaefer graduated from medical school in 2001, 25 years ago.
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