Lena Lax, NP
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 27
- Industry payments
- $16
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 822 Somerville Ave, Cambridge, MA 02140-1428
- Practice phone
- Call (617) 903-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
One Medical
Multi-specialty group site · Cambridge, Massachusetts
Find Lena Lax'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.
Lena Lax is a nurse practitioner in Cambridge, Massachusetts
Lena Lax practices at One Medical in Cambridge, Massachusetts.
Lena Lax's NPI, 1417406976, was assigned on September 26, 2016. Lena Lax holds Massachusetts license RN2298221.
- NPI
- 1417406976NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496038424
- NPI enumeration date
- September 26, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 903-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Lena Lax practices at One Medical in Cambridge, Massachusetts
Lena Lax's primary practice is One Medical, at 822 Somerville Ave, Cambridge, MA 02140-1428. The practice phone is (617) 903-5000.
- One Medical822 Somerville Ave, Cambridge, MA 02140-1428Phone(617) 903-5000
Source: Dmand AI Affiliation Data
Lena Lax is affiliated with 2 sites of care and 3 medical groups
Lena Lax's primary practice is One Medical in Cambridge, Massachusetts. The medical group on file is One Medical. Dmand AI also links Lena Lax to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Lena Lax's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Lena Lax practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| One Medical | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Lena Lax is one of 2,511 nurse practitioners in Massachusetts
Nurse practitioner is Lena Lax's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Dmand AI has Lena Lax's licenses on file in 2 states: Massachusetts and California.
Specialties and state licenses
- Nurse practitioner, MassachusettsPrimary
- California license
Nurse practitioners near Lena Lax
Counts of nurse practitioners 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
Lena Lax treated 15 Medicare patients in 2024, average age 72
CMS counts 15 Medicare patients who saw Lena Lax in 2024. 73% of them have high blood pressure. Their average risk score is 0.66, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Lena Lax's median patient age at 35, with 61% women.
Chronic conditions among Lena Lax's Medicare patients, 2024
- High blood pressure73%
Share of Medicare patients with each condition. A patient can have several.
Lena Lax's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women61%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Lena Lax wrote 27 Medicare Part D claims in 2024
In 2024, Lena Lax wrote 27 Medicare Part D claims for 13 patients. 74% of them were for generic drugs.
Lena Lax's Part D claims by kind of drug, 2024
- Generic20 claims74%
- Brand-name and other7 claims26%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Lena Lax offers telehealth to Medicare patients
Lena Lax accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Lena Lax as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Lena Lax received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Lena Lax from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $16.
Companies that paid Lena Lax the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Lena Lax'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 Data |
| 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 (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) |
| 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 Lena Lax
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Lena Lax's NPI number?
Lena Lax's NPI number is 1417406976. It was assigned on September 26, 2016, and it is active in the NPI Registry.
What does Lena Lax specialize in?
Lena Lax is a nurse practitioner in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Lena Lax practice?
Lena Lax practices at 822 Somerville Ave, Cambridge, MA 02140-1428. Lena Lax's primary practice is One Medical in Cambridge, Massachusetts. Dmand AI also links Lena Lax to 2 medical groups and 1 group practice or clinic.
What is Lena Lax's office phone number?
The practice phone on file for Lena Lax is (617) 903-5000.
What is Lena Lax's medical license number?
Lena Lax holds Massachusetts license RN2298221, one of the licenses on file in 2 states.
Which states has Lena Lax been licensed in?
Dmand AI has state licenses on file for Lena Lax in Massachusetts and California.
What medical group is Lena Lax part of?
Lena Lax is linked to One Medical. Dmand AI links Lena Lax to 2 more medical groups.
Does Lena Lax accept Medicare?
Yes. CMS lists Lena Lax as accepting Medicare assignment.
Does Lena Lax offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Lena Lax as offering telehealth services.
How many Medicare patients does Lena Lax see?
CMS counts 15 Medicare patients who saw Lena Lax in 2024, with an average age of 72.
Has Lena Lax received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Lena Lax from 1 company from 2025 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Lena Lax been practicing?
Lena Lax graduated from medical school in 2016, 10 years ago.
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