Dr. Allison Guttmann Lewis, MD
- Medicare services, 2024
- 3,508
- Medicare patients, 2024
- 221
- Part D claims, 2024
- 1,055
- Hospital affiliations
- 5
- Industry payments
- $6,134
- Practice address
- 100 Madison Ave, Morristown, NJ 07962
- Practice phone
- Call (973) 971-5450
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lewis' professional email, personal email and mobile number
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Dr. Allison Guttmann Lewis is a rheumatologist in Morristown, New Jersey
Dr. Lewis practices at Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System.
Dr. Lewis' NPI, 1043698368, was assigned on May 7, 2015. Dr. Lewis graduated from New York University School of Medicine in 2015. Dr. Lewis holds New Jersey license 25MA11093700.
- NPI
- 1043698368NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820346422
- NPI enumeration date
- May 7, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (973) 971-5450
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Allison Guttmann Lewis practices at Morristown Medical Center in Morristown, New Jersey
Dr. Lewis' primary practice is Morristown Medical Center, at 100 Madison Ave, Morristown, NJ 07962 in Morris County. The practice phone is (973) 971-5450.
- Morristown Medical Center100 Madison Ave, Morristown, NJ 07962 · Morris CountyPhone(973) 971-5450
Source: Dmand AI Affiliation Data
Dr. Allison Guttmann Lewis is affiliated with 6 sites of care and 1 medical group
Dr. Lewis' primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dr. Lewis is also affiliated with Overlook Medical Center. The medical group on file is Atlantic Medical Group. Dmand AI also links Dr. Lewis to 3 more hospitals and 1 group practice or clinic, 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. Allison Guttmann Lewis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lewis practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Morristown Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Allison Guttmann Lewis is one of 234 rheumatologists in New Jersey
Rheumatology is Dr. Lewis' primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Lewis is licensed in New Jersey.
Specialties and state licenses
- Rheumatology, New JerseyPrimary
Rheumatologists near Dr. Lewis
Counts of rheumatologists 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. Allison Guttmann Lewis billed Medicare for 3,508 services in 2024
CMS data shows 3,508 Medicare services from Dr. Lewis across 5 procedure codes in 2024, for 221 Medicare patients. Medicare paid $105,387 for them. Every service was in an office.
Dr. Lewis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 3,1202024: 3,0602%
- Office and hospital visits
- 2023: 5182024: 37328%
- Tests and treatments
- 2023: 882024: 7515%
Dr. Lewis compared with the New Jersey median for rheumatologists, 2024
- Dr. Lewis
- New Jersey median
- Medicare services
- 3,508vs 3,99512% below
- Medicare patients
- 221vs 26617% below
- Part D claims
- 854vs 1,06420% below
Medians across 237 rheumatologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Lewis' 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. Allison Guttmann Lewis treated 221 Medicare patients in 2024, average age 72
CMS counts 221 Medicare patients who saw Dr. Lewis in 2024. The largest group is 65 to 74, with 118 patients. 75% of them have arthritis, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lewis' median patient age at 63, with 81% women.
Dr. Lewis' Medicare patients by age, 2024
Dr. Lewis' Medicare patients by sex, 2024
- Women18785%
- Men3415%
Chronic conditions among Dr. Lewis' Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure66%
- Osteoporosis48%
- Mood disorders28%
- Ischemic heart disease26%
- Diabetes25%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lewis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women81%
- Men15%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Allison Guttmann Lewis wrote 1,055 Medicare Part D claims in 2024
In 2024, Dr. Lewis wrote 1,055 Medicare Part D claims for 235 patients. 89% of them were for generic drugs. CMS names the drug for 854 of them, across 22 drugs with 11 or more claims each, at $502,035 in total drug cost. In 2023, CMS named 950 claims across 27 drugs.
Dr. Lewis' Part D claims by kind of drug, 2024
- Generic934 claims89%
- Brand-name121 claims11%
Dr. Lewis' 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. Lewis' Part D claims, 2024
- Opioids2%18 of 1,055 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: 9502024: 85410%
Drugs named by CMS: 22 in 2024, 27 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. Allison Guttmann Lewis offers telehealth to Medicare patients
Dr. Lewis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lewis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Allison Guttmann Lewis received $6,134 in industry payments from 2021 to 2025
CMS Open Payments shows 367 general payments to Dr. Lewis from 23 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 94% of the total. Amgen Inc. paid the most, $1,307.
General payments to Dr. Lewis by program year, 2021 to 2025
General payments to Dr. Lewis by kind, 2021 to 2025
- Food and beverage$5,78494%
- Education$3496%
Companies that paid Dr. Lewis the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Allison Guttmann Lewis graduated from New York University School of Medicine
Dr. Lewis graduated from New York University School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Allison Guttmann Lewis'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) |
| 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) |
| Industry payments | Open Payments (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. Allison Guttmann Lewis
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. Allison Guttmann Lewis' NPI number?
Dr. Allison Guttmann Lewis' NPI number is 1043698368. It was assigned on May 7, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Allison Guttmann Lewis?
Dr. Allison Guttmann Lewis is a rheumatologist in Morristown, New Jersey. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Allison Guttmann Lewis practice?
Dr. Lewis practices at 100 Madison Ave, Morristown, NJ 07962. Dr. Lewis' primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dmand AI also links Dr. Lewis to 3 hospitals and 1 group practice or clinic.
What is Dr. Allison Guttmann Lewis' office phone number?
The practice phone on file for Dr. Lewis is (973) 971-5450.
What is Dr. Allison Guttmann Lewis' medical license number?
Dr. Lewis holds New Jersey license 25MA11093700.
Which hospitals is Dr. Allison Guttmann Lewis affiliated with?
Dr. Lewis practices at Morristown Medical Center in Morristown, New Jersey. Dr. Lewis is also affiliated with Overlook Medical Center. Dmand AI links Dr. Lewis to 3 more hospitals.
What medical group is Dr. Allison Guttmann Lewis part of?
Dr. Lewis is linked to Atlantic Medical Group.
Does Dr. Allison Guttmann Lewis accept Medicare?
Yes. CMS data shows Dr. Lewis billed Medicare for 3,508 services in 2024, and Dr. Lewis accepts Medicare assignment.
Does Dr. Allison Guttmann Lewis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lewis as offering telehealth services.
How many Medicare patients does Dr. Allison Guttmann Lewis see?
CMS counts 221 Medicare patients who saw Dr. Lewis in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Allison Guttmann Lewis bill to Medicare?
In 2024, Dr. Lewis' most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and infusion or chemotherapy administration (96372).
Where did Dr. Allison Guttmann Lewis go to medical school?
Dr. Lewis graduated from New York University School of Medicine in 2015.
What drugs does Dr. Allison Guttmann Lewis prescribe most?
In 2024 Medicare Part D data, Dr. Lewis' most prescribed drugs by claims were Methotrexate, Prednisone and Hydroxychloroquine Sulfate.
Has Dr. Allison Guttmann Lewis received payments from drug or device companies?
CMS Open Payments shows $6,134 in general payments to Dr. Lewis from 23 companies from 2021 to 2025. The largest total came from Amgen Inc.
How long has Dr. Allison Guttmann Lewis been practicing?
Dr. Lewis graduated from medical school in 2015, 11 years ago.
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