Pulmonary & Critical Care Medicine, Inc.
NPI 1508854381 · Critical Care Medicine (Internal Medicine) Physician · Mill Valley, CA
Pulmonary & Critical Care Medicine, Inc. is a Critical Care Medicine (Internal Medicine) Physician organization in Mill Valley, CA (NPI 1508854381).
Provider details
- NPI number
- 1508854381
- Entity type
- Organization
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Merrill Nisam, President(415) 924-1214
- License
- A49947 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Merrill R Nisam, MD
Registry dates
- Enumerated
- 2005-10-06
- Last updated
- 2011-01-13
Frequently asked questions
- What is Pulmonary & Critical Care Medicine, Inc.'s NPI number?
- Pulmonary & Critical Care Medicine, Inc.'s National Provider Identifier (NPI) is 1508854381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Pulmonary & Critical Care Medicine, Inc.?
- Pulmonary & Critical Care Medicine, Inc. is classified in the NPPES registry as Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Pulmonary & Critical Care Medicine, Inc. located?
- Pulmonary & Critical Care Medicine, Inc.'s practice location on file with NPPES is 335 Carrera Dr, Mill Valley, CA 94941-3999.
- What is Pulmonary & Critical Care Medicine, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Pulmonary & Critical Care Medicine, Inc. is (415) 388-7210.
- Who is the authorized official for Pulmonary & Critical Care Medicine, Inc.?
- The authorized official listed on Pulmonary & Critical Care Medicine, Inc.'s NPPES record is Merrill Nisam, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Pulmonary & Critical Care Medicine, Inc.'s NPI active?
- Yes — Pulmonary & Critical Care Medicine, Inc.'s NPI (1508854381) is active in the NPPES registry as of the last update on 2011-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.