J Allergy Clin Immunol Pract
Dr. Whitney M. Rassbach, MD
- Medicare services, 2024
- 10,902
- Medicare patients, 2024
- 415
- Part D claims, 2024
- 1,436
- Publications
- 2
- MIPS score, 2024
- 82
- Practice address
- 20055 Lake Chabot Rd, Castro Valley, CA 94546
- Practice phone
- Call (415) 476-7220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baychildren's Physicians
Castro Valley, California
Find Dr. Rassbach'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. Whitney M. Rassbach is an allergy physician in Castro Valley, California
Dr. Rassbach practices at Baychildren's Physicians in Castro Valley, California.
Dr. Rassbach's NPI, 1831352350, was assigned on July 3, 2008. Dr. Rassbach graduated from Vagelos College of Physicians and Surgeons in 2008. Dr. Rassbach holds California license A134888.
- NPI
- 1831352350NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931356094
- NPI enumeration date
- July 3, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 476-7220
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Whitney M. Rassbach practices at Baychildren's Physicians in Castro Valley, California
Dr. Rassbach's primary practice is Baychildren's Physicians, at 20055 Lake Chabot Rd, Castro Valley, CA 94546 in Alameda County. The practice phone is (415) 476-7220.
- Baychildren's Physicians20055 Lake Chabot Rd, Castro Valley, CA 94546 · Alameda CountyPhone(415) 476-7220
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Whitney M. Rassbach is affiliated with 4 sites of care and 2 medical groups
Dr. Rassbach's primary practice is Baychildren's Physicians in Castro Valley, California. Dr. Rassbach is also affiliated with Community Hospital of the Monterey Peninsula. The medical group on file is BayChildren's Medical Group. Dmand AI also links Dr. Rassbach to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Whitney M. Rassbach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rassbach practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baychildren's Physicians | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Whitney M. Rassbach is one of 136 allergy physicians in California
Allergy is Dr. Rassbach's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Rassbach is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Rassbach's licenses on file in 3 states: California, Michigan and New York.
Specialties and state licenses
- Allergy, CaliforniaPrimary
- Michigan license
- New York license
Clinical focus
Dmand AI lists acute sinusitis, asthma, chronic nasal allergies, hives and upper respiratory infection (URI) among the conditions Dr. Rassbach treats.
Allergy physicians near Dr. Rassbach
Counts of allergy physicians 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. Whitney M. Rassbach billed Medicare for 10,902 services in 2024
CMS data shows 10,902 Medicare services from Dr. Rassbach across 14 procedure codes in 2024, for 415 Medicare patients. Medicare paid $135,651 for them. Every service was in an office.
Dr. Rassbach's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 10,4932024: 10,0774%
- Office and hospital visits
- 2023: 8242024: 825No change
Dr. Rassbach compared with the California median for allergy physicians, 2024
- Dr. Rassbach
- California median
- Medicare services
- 10,902vs 2,3344.7 times
- Medicare patients
- 415vs 1682.5 times
- Part D claims
- 1,249vs 2155.8 times
Medians across 123 allergy physicians in California with Dmand AI profiles that report each measure.
Dr. Rassbach's most billed Medicare procedure codes, 2024
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. Rassbach?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rassbach and other allergy physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Whitney M. Rassbach treated 415 Medicare patients in 2024, average age 75
CMS counts 415 Medicare patients who saw Dr. Rassbach in 2024. The largest group is 65 to 74, with 205 patients. 75% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Rassbach's median patient age at 38, with 60% women.
Dr. Rassbach's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rassbach's Medicare patients by sex, 2024
- Women29972%
- Men11628%
Chronic conditions among Dr. Rassbach's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis50%
- Asthma49%
- Ischemic heart disease24%
- Osteoporosis24%
- Mood disorders21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rassbach's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women60%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Whitney M. Rassbach wrote 1,436 Medicare Part D claims in 2024
In 2024, Dr. Rassbach wrote 1,436 Medicare Part D claims for 330 patients. 61% of them were for generic drugs. CMS names the drug for 1,249 of them, across 29 drugs with 11 or more claims each, at $578,673 in total drug cost. In 2023, CMS named 952 claims across 27 drugs.
Dr. Rassbach's Part D claims by kind of drug, 2024
- Generic882 claims61%
- Brand-name554 claims39%
Dr. Rassbach'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. Rassbach's Part D claims, 2024
- Antibiotics4%63 of 1,436 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: 9522024: 1,24931%
Drugs named by CMS: 29 in 2024, 27 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
Dr. Whitney M. Rassbach scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Rassbach for performance year 2024, reported as part of a group. Dr. Rassbach accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Rassbach's MIPS scores, performance year 2024
- 82of 100Final score
- 89.1of 100Quality
- 71of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Whitney M. Rassbach has 2 publications on record
Dmand AI links 2 papers to Dr. Rassbach, published from 2014 to 2017. Dr. Rassbach has published most often in J Allergy Clin Immunol Pract. Dr. Rassbach's most frequent co-authors are Matthew Jason Greenhawt, MBA, MD, Joel H. Rubenstein, MD and Hugh Sampson, MD.
Dr. Rassbach's most frequent co-authors
- Matthew Jason Greenhawt, MBA, MD1 shared paper
- Joel H. Rubenstein, MD1 shared paper
- Hugh Sampson, MD1 shared paper
Recent publications by Dr. Rassbach
J Allergy Clin Immunol Pract
See who Dr. Rassbach researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rassbach works with, so you can find a warm path to the right allergy physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Whitney M. Rassbach received $28 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Rassbach from 2 drug and device companies in 2017. Education make up the largest share, 63% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $18.
General payments to Dr. Rassbach by kind, 2017 to 2017
- Education$1863%
- Food and beverage$1037%
Companies that paid Dr. Rassbach the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Whitney M. Rassbach graduated from Vagelos College of Physicians and Surgeons
Dr. Rassbach graduated from Vagelos College of Physicians and Surgeons in 2008.
- Medical school
- Board certified in allergy & immunology
Source: Dmand AI Professional Profile Data
Dr. Whitney M. Rassbach accepts plans from 9 insurance carriers
Dr. Rassbach is in network with 9 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Health Alliance Plan
- Regence Health Plans
- +1 more carriersWith a free account
Plan types Dr. Rassbach accepts, by number of carriers
- Medicare8
- PPO8
- EPO4
- HMO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Whitney M. Rassbach'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Whitney M. Rassbach
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. Whitney M. Rassbach's NPI number?
Dr. Whitney M. Rassbach's NPI number is 1831352350. It was assigned on July 3, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Whitney M. Rassbach?
Dr. Whitney M. Rassbach is an allergy physician in Castro Valley, California. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).
Where does Dr. Whitney M. Rassbach practice?
Dr. Rassbach practices at 20055 Lake Chabot Rd, Castro Valley, CA 94546. Dr. Rassbach's primary practice is Baychildren's Physicians in Castro Valley, California. Dmand AI also links Dr. Rassbach to 2 group practices and clinics and 1 medical group.
What is Dr. Whitney M. Rassbach's office phone number?
The practice phone on file for Dr. Rassbach is (415) 476-7220.
What is Dr. Whitney M. Rassbach's medical license number?
Dr. Rassbach holds California license A134888, one of the licenses on file in 3 states.
Which states has Dr. Whitney M. Rassbach been licensed in?
Dmand AI has state licenses on file for Dr. Rassbach in California (2015 to 2027), Michigan (2008 to 2016) and New York (2013 to 2016).
Which hospitals is Dr. Whitney M. Rassbach affiliated with?
Dr. Rassbach is affiliated with Community Hospital of the Monterey Peninsula.
What medical group is Dr. Whitney M. Rassbach part of?
Dr. Rassbach is linked to BayChildren's Medical Group. Dmand AI links Dr. Rassbach to 1 more medical group.
Does Dr. Whitney M. Rassbach accept Medicare?
Yes. CMS data shows Dr. Rassbach billed Medicare for 10,902 services in 2024, and Dr. Rassbach accepts Medicare assignment.
What is Dr. Whitney M. Rassbach's MIPS score?
Dr. Rassbach's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Whitney M. Rassbach see?
CMS counts 415 Medicare patients who saw Dr. Rassbach in 2024, with an average age of 75.
Is Dr. Whitney M. Rassbach board certified?
Yes. Dr. Rassbach is board certified in allergy & immunology by the American Board of Allergy and Immunology.
What services does Dr. Whitney M. Rassbach bill to Medicare?
In 2024, Dr. Rassbach's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95044) and allergy test or treatment (95165).
Where did Dr. Whitney M. Rassbach go to medical school?
Dr. Rassbach graduated from Vagelos College of Physicians and Surgeons in 2008.
What drugs does Dr. Whitney M. Rassbach prescribe most?
In 2024 Medicare Part D data, Dr. Rassbach's most prescribed drugs by claims were Azelastine HCl, Ipratropium Bromide and Montelukast Sodium.
Has Dr. Whitney M. Rassbach received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Dr. Rassbach from 2 companies from 2017 to 2017. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Dr. Whitney M. Rassbach been practicing?
Dr. Rassbach graduated from medical school in 2008, 18 years ago.
Does Dr. Whitney M. Rassbach do research?
Dmand AI links 2 publications to Dr. Rassbach, published from 2014 to 2017.
Who does Dr. Whitney M. Rassbach publish with?
Dr. Rassbach's most frequent co-authors are Matthew Jason Greenhawt, MBA, MD (1 shared paper), Joel H. Rubenstein, MD (1 shared paper) and Hugh Sampson, MD (1 shared paper).
What insurance does Dr. Whitney M. Rassbach accept?
Dr. Rassbach is in network with 9 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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