Dr. Mark Jay Klein, MD
- Medicare services, 2023
- 880
- Part D claims, 2024
- 291
- Publications
- 1
- Industry payments
- $12,295
- Affiliated sites
- 2
- Practice address
- 1033 Los Palos Dr, Salinas, CA 93901-3916
- Practice phone
- Call (831) 757-2058
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Salinas Valley Health Clinics
Multi-specialty group site · Salinas, California
Find Dr. Klein'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.
Dr. Mark Jay Klein is a pulmonologist in Salinas, California
Dr. Klein practices at Salinas Valley Health Clinics in Salinas, California.
Dr. Klein's NPI, 1093718165, was assigned on May 23, 2005. Dr. Klein graduated from SUNY Downstate Health Sciences University in 1971. Dr. Klein's California license number on file is G22851.
- NPI
- 1093718165NPI Registry (opens in a new tab)
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Practice phone
- (831) 757-2058
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 82
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark Jay Klein practices at Salinas Valley Health Clinics in Salinas, California
Dr. Klein's primary practice is Salinas Valley Health Clinics, at 1033 Los Palos Dr, Salinas, CA 93901-3916. The practice phone is (831) 757-2058.
- Salinas Valley Health Clinics1033 Los Palos Dr, Salinas, CA 93901-3916Phone(831) 757-2058
Source: Dmand AI Affiliation Data
Dr. Mark Jay Klein is affiliated with 2 sites of care and 2 medical groups
Dr. Klein's primary practice is Salinas Valley Health Clinics in Salinas, California. The medical group on file is Salinas Valley Health Clinics. Dmand AI also links Dr. Klein to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark Jay Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Salinas Valley Health Clinics | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Jay Klein is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Klein is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Klein's licenses on file in 3 states: California, New York and Oregon.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- New York license
- Oregon license
Clinical focus
Dmand AI lists acute sinusitis, asthma, bronchitis, chronic lung disease, chronic obstructive pulmonary disease (COPD), chronic respiratory failure, pleural effusion and pneumonia among the conditions Dr. Klein treats.
Pulmonologists near Dr. Klein
Counts of pulmonologists 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. Mark Jay Klein billed Medicare for 880 services in 2023
CMS data shows 880 Medicare services from Dr. Klein across 16 procedure codes in 2023. Medicare paid $51,872 for them.
Dr. Klein's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 8312023: 63923%
- Tests and treatments
- 2022: 3812023: 18152%
- Drugs given in the office
- 2022: 1452023: 4768%
- Other services
- 2022: 292023: 1355%
Where Dr. Klein's Medicare services took place, 2023
- In an office82894%
- In a facility526%
Dr. Klein compared with the California median for pulmonologists, 2023
- Dr. Klein
- California median
- Medicare services
- 880vs 64936% above
- Part D claims
- 177vs 42158% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Klein's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Klein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klein and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Jay Klein's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Klein's median patient age at 73, with 50% women.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Mark Jay Klein wrote 291 Medicare Part D claims in 2024
In 2024, Dr. Klein wrote 291 Medicare Part D claims for 86 patients. 43% of them were for generic drugs. CMS names the drug for 177 of them, across 7 drugs with 11 or more claims each, at $55,482 in total drug cost. In 2023, CMS named 1,351 claims across 32 drugs.
Dr. Klein's Part D claims by kind of drug, 2024
- Generic126 claims43%
- Brand-name165 claims57%
Dr. Klein's 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. Klein's Part D claims, 2024
- Antibiotics5%16 of 291 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: 1,3512024: 17787%
Drugs named by CMS: 7 in 2024, 32 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
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Dr. Mark Jay Klein has 1 publication on record
Dmand AI links 1 paper to Dr. Klein in 2021.
Recent publications by Dr. Klein
See who Dr. Klein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Klein works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Jay Klein received $12,295 in industry payments from 2016 to 2023
CMS Open Payments shows 661 general payments to Dr. Klein from 37 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 99% of the total. GlaxoSmithKline, LLC. paid the most, $4,464.
General payments to Dr. Klein by program year, 2016 to 2023
General payments to Dr. Klein by kind, 2016 to 2023
- Food and beverage$12,16599%
- Education$1301%
Companies that paid Dr. Klein the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Jay Klein has 1 award and honors on record
Dmand AI lists 1 award for Dr. Klein, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Klein
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Mark Jay Klein graduated from SUNY Downstate Health Sciences University
Dr. Klein graduated from SUNY Downstate Health Sciences University in 1971. Dr. Klein is a member of ACCP and ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mark Jay Klein accepts plans from 4 insurance carriers
Dr. Klein is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Klein accepts, by number of carriers
- Medicare4
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Jay Klein'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 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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Mark Jay Klein
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. Mark Jay Klein's NPI number?
Dr. Mark Jay Klein's NPI number is 1093718165. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Jay Klein?
Dr. Mark Jay Klein is a pulmonologist in Salinas, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mark Jay Klein practice?
Dr. Klein practices at 1033 Los Palos Dr, Salinas, CA 93901-3916. Dr. Klein's primary practice is Salinas Valley Health Clinics in Salinas, California. Dmand AI also links Dr. Klein to 1 group practice or clinic and 1 medical group.
What is Dr. Mark Jay Klein's office phone number?
The practice phone on file for Dr. Klein is (831) 757-2058.
What is Dr. Mark Jay Klein's medical license number?
Dr. Klein's California license number on file is G22851, one of the licenses on file in 3 states.
Which states has Dr. Mark Jay Klein been licensed in?
Dmand AI has state licenses on file for Dr. Klein in California (1972 to 2025), New York (since 1973) and Oregon (since 1977).
What medical group is Dr. Mark Jay Klein part of?
Dr. Klein is linked to Salinas Valley Health Clinics. Dmand AI links Dr. Klein to 1 more medical group.
Does Dr. Mark Jay Klein accept Medicare?
Yes. CMS data shows Dr. Klein billed Medicare for 880 services in 2023.
Is Dr. Mark Jay Klein board certified?
Yes. Dr. Klein is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Mark Jay Klein bill to Medicare?
In 2023, Dr. Klein's most billed Medicare services were office visit, established patient (99213), infusion or chemotherapy administration (96372) and care management and other visits (99441).
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Where did Dr. Mark Jay Klein go to medical school?
Dr. Klein graduated from SUNY Downstate Health Sciences University in 1971.
What drugs does Dr. Mark Jay Klein prescribe most?
In 2024 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Montelukast Sodium, Albuterol Sulfate Hfa and Trelegy Ellipta.
Has Dr. Mark Jay Klein received payments from drug or device companies?
CMS Open Payments shows $12,295 in general payments to Dr. Klein from 37 companies from 2016 to 2023. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Mark Jay Klein been practicing?
Dr. Klein graduated from medical school in 1971, 55 years ago.
Does Dr. Mark Jay Klein do research?
Dmand AI links 1 publication to Dr. Klein.
What insurance does Dr. Mark Jay Klein accept?
Dr. Klein is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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