ALEXANDER HALSTEAD MASSEY M.D.
NPI 1851463343
Internal Medicine - Pulmonary Disease in Placerville, CA
About Alexander Halstead Massey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER HALSTEAD MASSEY M.D. (NPI 1851463343) is an individual pulmonary disease provider in Placerville, California, licensed in California (G78874) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Alexander Halstead Massey M.d. 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 Reassignment
Medicare enrollment records show Alexander Massey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Placerville, CA 95667
- Reassigned Medicare billing, California enrollment
- 152 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 11
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95667 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 31
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PLACERVILLE, CA 95667
PLACERVILLE, CA 95667
PLACERVILLE, CA 95667
PLACERVILLE, CA 95667
PLACERVILLE, CA 95667
PLACERVILLE, CA 95667
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 Alexander Massey's NPI number?
The NPI number for Alexander Massey is 1851463343. It was assigned to this individual provider in the NPPES registry on November 14, 2006.
Where is Alexander Massey located?
Alexander Massey practices at 1004 Fowler Way Ste 4, Placerville, CA 95667. The listed phone number is (530) 626-9488.
What is Alexander Massey's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Alexander Massey enrolled in Medicare?
Yes. Alexander Massey 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 organization bills Medicare for Alexander Massey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Massey reassigns Medicare benefits to Marshall Medical Center (Placerville, CA). The 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 Alexander Massey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alexander Massey was last updated on February 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.