PATRICK ALVARADO MD
NPI 1649701079
Anesthesiology in Cambridge, MA
About Patrick Alvarado Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICK ALVARADO MD (NPI 1649701079) is an individual anesthesiology provider in Cambridge, Massachusetts, licensed in New Hampshire (21200) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Patrick Alvarado Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Patrick Alvarado reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1255818472 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Concord, NH 03301
- Reassigned Medicare billing, New Hampshire enrollment
- 98 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Patrick Alvarado's NPI number?
The NPI number for Patrick Alvarado is 1649701079. It was assigned to this individual provider in the NPPES registry on March 27, 2017.
Where is Patrick Alvarado located?
Patrick Alvarado practices at 330 Mount Auburn St, Cambridge, MA 02138. The listed phone number is (774) 242-9962.
What is Patrick Alvarado's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Patrick Alvarado enrolled in Medicare?
Yes. Patrick Alvarado is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Patrick Alvarado's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Alvarado reassigns Medicare benefits to 3 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Anesthesia Associates Professional Association (Concord, NH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Patrick Alvarado's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Patrick Alvarado affiliated with any hospitals?
According to CMS data, Patrick Alvarado is affiliated with Mount Auburn Hospital.
When was this NPI record last updated?
The NPPES record for Patrick Alvarado was last updated on January 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Patrick Alvarado, MD · NPI 1649701079
Anesthesiology physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since March 27, 2017.
## Identity
- **NPI:** 1649701079 (Entity type: Individual)
- **Enumerated:** March 27, 2017
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 21200 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 MOUNT AUBURN ST, Cambridge, MA 02138-5502
- **Phone:** (774) 242-9962
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Anesthesia Associates Professional Association (NPI 1881791150, Concord, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** January 5, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1649701079) · Data from the CMS NPPES public registry.